diff --git a/apps/app_channelredirect.c b/apps/app_channelredirect.c
index bea7a91f1c..8c98ed7b72 100644
--- a/apps/app_channelredirect.c
+++ b/apps/app_channelredirect.c
@@ -97,7 +97,7 @@ static int asyncgoto_exec(struct ast_channel *chan, const char *data)
 	}
 
 	if (ast_channel_pbx(chan2)) {
-		ast_set_flag(chan2, AST_FLAG_BRIDGE_HANGUP_DONT); /* don't let the after-bridge code run the h-exten */
+		ast_set_flag(ast_channel_flags(chan2), AST_FLAG_BRIDGE_HANGUP_DONT); /* don't let the after-bridge code run the h-exten */
 	}
 
 	res = ast_async_parseable_goto(chan2, args.label);
diff --git a/apps/app_chanspy.c b/apps/app_chanspy.c
index e773c47895..cafc62b395 100644
--- a/apps/app_chanspy.c
+++ b/apps/app_chanspy.c
@@ -489,7 +489,7 @@ static int start_spying(struct ast_autochan *autochan, const char *spychan_name,
 	ast_set_flag(audiohook, AST_AUDIOHOOK_TRIGGER_SYNC | AST_AUDIOHOOK_SMALL_QUEUE);
 	res = ast_audiohook_attach(autochan->chan, audiohook);
 
-	if (!res && ast_test_flag(autochan->chan, AST_FLAG_NBRIDGE) && (peer = ast_bridged_channel(autochan->chan))) {
+	if (!res && ast_test_flag(ast_channel_flags(autochan->chan), AST_FLAG_NBRIDGE) && (peer = ast_bridged_channel(autochan->chan))) {
 		ast_softhangup(peer, AST_SOFTHANGUP_UNBRIDGE);
 	}
 	return res;
@@ -583,7 +583,7 @@ static int channel_spy(struct ast_channel *chan, struct ast_autochan *spyee_auto
 	}
 
 	ast_channel_lock(chan);
-	ast_set_flag(chan, AST_FLAG_END_DTMF_ONLY);
+	ast_set_flag(ast_channel_flags(chan), AST_FLAG_END_DTMF_ONLY);
 	ast_channel_unlock(chan);
 
 	csth.volfactor = *volfactor;
@@ -699,7 +699,7 @@ static int channel_spy(struct ast_channel *chan, struct ast_autochan *spyee_auto
 		ast_deactivate_generator(chan);
 
 	ast_channel_lock(chan);
-	ast_clear_flag(chan, AST_FLAG_END_DTMF_ONLY);
+	ast_clear_flag(ast_channel_flags(chan), AST_FLAG_END_DTMF_ONLY);
 	ast_channel_unlock(chan);
 
 	if (ast_test_flag(flags, OPTION_WHISPER | OPTION_BARGE | OPTION_DTMF_SWITCH_MODES)) {
@@ -787,7 +787,7 @@ static int common_exec(struct ast_channel *chan, struct ast_flags *flags,
 	if (ast_channel_state(chan) != AST_STATE_UP)
 		ast_answer(chan);
 
-	ast_set_flag(chan, AST_FLAG_SPYING); /* so nobody can spy on us while we are spying */
+	ast_set_flag(ast_channel_flags(chan), AST_FLAG_SPYING); /* so nobody can spy on us while we are spying */
 
 	waitms = 100;
 
@@ -800,7 +800,7 @@ static int common_exec(struct ast_channel *chan, struct ast_flags *flags,
 			if (!res)
 				res = ast_waitstream(chan, "");
 			else if (res < 0) {
-				ast_clear_flag(chan, AST_FLAG_SPYING);
+				ast_clear_flag(ast_channel_flags(chan), AST_FLAG_SPYING);
 				break;
 			}
 			if (!ast_strlen_zero(exitcontext)) {
@@ -831,7 +831,7 @@ static int common_exec(struct ast_channel *chan, struct ast_flags *flags,
 		res = ast_waitfordigit(chan, waitms);
 		if (res < 0) {
 			iter = ast_channel_iterator_destroy(iter);
-			ast_clear_flag(chan, AST_FLAG_SPYING);
+			ast_clear_flag(ast_channel_flags(chan), AST_FLAG_SPYING);
 			break;
 		}
 		if (!ast_strlen_zero(exitcontext)) {
@@ -873,7 +873,7 @@ static int common_exec(struct ast_channel *chan, struct ast_flags *flags,
 				continue;
 			}
 
-			if (ast_check_hangup(autochan->chan) || ast_test_flag(autochan->chan, AST_FLAG_SPYING)) {
+			if (ast_check_hangup(autochan->chan) || ast_test_flag(ast_channel_flags(autochan->chan), AST_FLAG_SPYING)) {
 				continue;
 			}
 
@@ -1024,7 +1024,7 @@ static int common_exec(struct ast_channel *chan, struct ast_flags *flags,
 	}
 exit:
 
-	ast_clear_flag(chan, AST_FLAG_SPYING);
+	ast_clear_flag(ast_channel_flags(chan), AST_FLAG_SPYING);
 
 	ast_channel_setoption(chan, AST_OPTION_TXGAIN, &zero_volume, sizeof(zero_volume), 0);
 
diff --git a/apps/app_confbridge.c b/apps/app_confbridge.c
index 89c4354b32..866042cdd6 100644
--- a/apps/app_confbridge.c
+++ b/apps/app_confbridge.c
@@ -1142,7 +1142,7 @@ static int alloc_playback_chan(struct conference_bridge *conference_bridge)
 	}
 	cap = ast_format_cap_destroy(cap);
 
-	conference_bridge->playback_chan->bridge = conference_bridge->bridge;
+	ast_channel_internal_bridge_set(conference_bridge->playback_chan, conference_bridge->bridge);
 
 	if (ast_call(conference_bridge->playback_chan, "", 0)) {
 		ast_hangup(conference_bridge->playback_chan);
diff --git a/apps/app_dial.c b/apps/app_dial.c
index 46330fc650..9ae9ea4890 100644
--- a/apps/app_dial.c
+++ b/apps/app_dial.c
@@ -693,7 +693,7 @@ static void hanguptree(struct chanlist *outgoing, struct ast_channel *exception,
 		if (outgoing->chan && (outgoing->chan != exception)) {
 			if (answered_elsewhere) {
 				/* The flag is used for local channel inheritance and stuff */
-				ast_set_flag(outgoing->chan, AST_FLAG_ANSWERED_ELSEWHERE);
+				ast_set_flag(ast_channel_flags(outgoing->chan), AST_FLAG_ANSWERED_ELSEWHERE);
 				/* This is for the channel drivers */
 				ast_channel_hangupcause_set(outgoing->chan, AST_CAUSE_ANSWERED_ELSEWHERE);
 			}
@@ -2327,12 +2327,12 @@ static int dial_exec_full(struct ast_channel *chan, const char *data, struct ast
 		if (outbound_group)
 			ast_app_group_set_channel(tc, outbound_group);
 		/* If the calling channel has the ANSWERED_ELSEWHERE flag set, inherit it. This is to support local channels */
-		if (ast_test_flag(chan, AST_FLAG_ANSWERED_ELSEWHERE))
-			ast_set_flag(tc, AST_FLAG_ANSWERED_ELSEWHERE);
+		if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_ANSWERED_ELSEWHERE))
+			ast_set_flag(ast_channel_flags(tc), AST_FLAG_ANSWERED_ELSEWHERE);
 
 		/* Check if we're forced by configuration */
 		if (ast_test_flag64(&opts, OPT_CANCEL_ELSEWHERE))
-			 ast_set_flag(tc, AST_FLAG_ANSWERED_ELSEWHERE);
+			 ast_set_flag(ast_channel_flags(tc), AST_FLAG_ANSWERED_ELSEWHERE);
 
 
 		/* Inherit context and extension */
@@ -2509,13 +2509,13 @@ static int dial_exec_full(struct ast_channel *chan, const char *data, struct ast
 				ast_log(LOG_ERROR, "error streaming file '%s' to callee\n", opt_args[OPT_ARG_ANNOUNCE]);
 			}
 
-			ast_set_flag(peer, AST_FLAG_END_DTMF_ONLY);
+			ast_set_flag(ast_channel_flags(peer), AST_FLAG_END_DTMF_ONLY);
 			while (ast_channel_stream(peer)) {
 				int ms;
 
 				ms = ast_sched_wait(ast_channel_sched(peer));
 
-				if (ms < 0 && !peer->timingfunc) {
+				if (ms < 0 && !ast_channel_timingfunc(peer)) {
 					ast_stopstream(peer);
 					break;
 				}
@@ -2557,7 +2557,7 @@ static int dial_exec_full(struct ast_channel *chan, const char *data, struct ast
 				}
 				ast_sched_runq(ast_channel_sched(peer));
 			}
-			ast_clear_flag(peer, AST_FLAG_END_DTMF_ONLY);
+			ast_clear_flag(ast_channel_flags(peer), AST_FLAG_END_DTMF_ONLY);
 		}
 
 		if (chan && peer && ast_test_flag64(&opts, OPT_GOTO) && !ast_strlen_zero(opt_args[OPT_ARG_GOTO])) {
@@ -2847,8 +2847,8 @@ static int dial_exec_full(struct ast_channel *chan, const char *data, struct ast
 			
 			ast_channel_exten_set(peer, "h");
 			ast_channel_priority_set(peer, 1);
-			autoloopflag = ast_test_flag(peer, AST_FLAG_IN_AUTOLOOP); /* save value to restore at the end */
-			ast_set_flag(peer, AST_FLAG_IN_AUTOLOOP);
+			autoloopflag = ast_test_flag(ast_channel_flags(peer), AST_FLAG_IN_AUTOLOOP); /* save value to restore at the end */
+			ast_set_flag(ast_channel_flags(peer), AST_FLAG_IN_AUTOLOOP);
 
 			while ((res9 = ast_spawn_extension(peer, ast_channel_context(peer), ast_channel_exten(peer),
 				ast_channel_priority(peer),
@@ -2862,7 +2862,7 @@ static int dial_exec_full(struct ast_channel *chan, const char *data, struct ast
 				ast_debug(1, "Spawn extension (%s,%s,%d) exited non-zero on '%s'\n", ast_channel_context(peer), ast_channel_exten(peer), ast_channel_priority(peer), ast_channel_name(peer));
 				ast_verb(2, "Spawn extension (%s, %s, %d) exited non-zero on '%s'\n", ast_channel_context(peer), ast_channel_exten(peer), ast_channel_priority(peer), ast_channel_name(peer));
 			}
-			ast_set2_flag(peer, autoloopflag, AST_FLAG_IN_AUTOLOOP);  /* set it back the way it was */
+			ast_set2_flag(ast_channel_flags(peer), autoloopflag, AST_FLAG_IN_AUTOLOOP);  /* set it back the way it was */
 		}
 		if (!ast_check_hangup(peer) && ast_test_flag64(&opts, OPT_CALLEE_GO_ON)) {
 			if(!ast_strlen_zero(opt_args[OPT_ARG_CALLEE_GO_ON])) {
@@ -2985,7 +2985,7 @@ static int retrydial_exec(struct ast_channel *chan, const char *data)
 		int continue_exec;
 
 		ast_channel_data_set(chan, "Retrying");
-		if (ast_test_flag(chan, AST_FLAG_MOH))
+		if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_MOH))
 			ast_moh_stop(chan);
 
 		res = dial_exec_full(chan, args.dialdata, &peerflags, &continue_exec);
@@ -3002,7 +3002,7 @@ static int retrydial_exec(struct ast_channel *chan, const char *data)
 						ast_log(LOG_WARNING, "Announce file \"%s\" specified in Retrydial does not exist\n", args.announce);
 				}
 				if (!res && sleepms) {
-					if (!ast_test_flag(chan, AST_FLAG_MOH))
+					if (!ast_test_flag(ast_channel_flags(chan), AST_FLAG_MOH))
 						ast_moh_start(chan, NULL, NULL);
 					res = ast_waitfordigit(chan, sleepms);
 				}
@@ -3015,7 +3015,7 @@ static int retrydial_exec(struct ast_channel *chan, const char *data)
 						ast_log(LOG_WARNING, "Announce file \"%s\" specified in Retrydial does not exist\n", args.announce);
 				}
 				if (sleepms) {
-					if (!ast_test_flag(chan, AST_FLAG_MOH))
+					if (!ast_test_flag(ast_channel_flags(chan), AST_FLAG_MOH))
 						ast_moh_start(chan, NULL, NULL);
 					if (!res)
 						res = ast_waitfordigit(chan, sleepms);
@@ -3038,7 +3038,7 @@ static int retrydial_exec(struct ast_channel *chan, const char *data)
 	else if (res == 1)
 		res = 0;
 
-	if (ast_test_flag(chan, AST_FLAG_MOH))
+	if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_MOH))
 		ast_moh_stop(chan);
  done:
 	return res;
diff --git a/apps/app_disa.c b/apps/app_disa.c
index 0432a0b619..b38da76542 100644
--- a/apps/app_disa.c
+++ b/apps/app_disa.c
@@ -204,7 +204,7 @@ static int disa_exec(struct ast_channel *chan, const char *data)
 
 	play_dialtone(chan, args.mailbox);
 
-	ast_set_flag(chan, AST_FLAG_END_DTMF_ONLY);
+	ast_set_flag(ast_channel_flags(chan), AST_FLAG_END_DTMF_ONLY);
 
 	for (;;) {
 		  /* if outa time, give em reorder */
@@ -220,7 +220,7 @@ static int disa_exec(struct ast_channel *chan, const char *data)
 		}
 
 		if (!(f = ast_read(chan))) {
-			ast_clear_flag(chan, AST_FLAG_END_DTMF_ONLY);
+			ast_clear_flag(ast_channel_flags(chan), AST_FLAG_END_DTMF_ONLY);
 			return -1;
 		}
 
@@ -228,7 +228,7 @@ static int disa_exec(struct ast_channel *chan, const char *data)
 			if (f->data.uint32)
 				ast_channel_hangupcause_set(chan, f->data.uint32);
 			ast_frfree(f);
-			ast_clear_flag(chan, AST_FLAG_END_DTMF_ONLY);
+			ast_clear_flag(ast_channel_flags(chan), AST_FLAG_END_DTMF_ONLY);
 			return -1;
 		}
 
@@ -257,7 +257,7 @@ static int disa_exec(struct ast_channel *chan, const char *data)
 						fp = fopen(args.passcode,"r");
 						if (!fp) {
 							ast_log(LOG_WARNING,"DISA password file %s not found on chan %s\n",args.passcode,ast_channel_name(chan));
-							ast_clear_flag(chan, AST_FLAG_END_DTMF_ONLY);
+							ast_clear_flag(ast_channel_flags(chan), AST_FLAG_END_DTMF_ONLY);
 							return -1;
 						}
 						pwline[0] = 0;
@@ -353,7 +353,7 @@ static int disa_exec(struct ast_channel *chan, const char *data)
 		}
 	}
 
-	ast_clear_flag(chan, AST_FLAG_END_DTMF_ONLY);
+	ast_clear_flag(ast_channel_flags(chan), AST_FLAG_END_DTMF_ONLY);
 
 	if (k == 3) {
 		int recheck = 0;
diff --git a/apps/app_dumpchan.c b/apps/app_dumpchan.c
index 403c9e079c..4a80a3d13e 100644
--- a/apps/app_dumpchan.c
+++ b/apps/app_dumpchan.c
@@ -158,7 +158,7 @@ static int serialize_showchan(struct ast_channel *c, char *buf, size_t size)
 		hour,
 		min,
 		sec,
-		c->_bridge ? ast_channel_name(c->_bridge) : "<none>",
+		ast_channel_internal_bridged_channel(c) ? ast_channel_name(ast_channel_internal_bridged_channel(c)) : "<none>",
 		ast_bridged_channel(c) ? ast_channel_name(ast_bridged_channel(c)) : "<none>", 
 		ast_channel_context(c),
 		ast_channel_exten(c),
@@ -167,7 +167,7 @@ static int serialize_showchan(struct ast_channel *c, char *buf, size_t size)
 		ast_print_group(pgrp, sizeof(pgrp), ast_channel_pickupgroup(c)),
 		ast_channel_appl(c) ? ast_channel_appl(c) : "(N/A)",
 		ast_channel_data(c) ? S_OR(ast_channel_data(c), "(Empty)") : "(None)",
-		(ast_test_flag(c, AST_FLAG_BLOCKING) ? ast_channel_blockproc(c) : "(Not Blocking)"));
+		(ast_test_flag(ast_channel_flags(c), AST_FLAG_BLOCKING) ? ast_channel_blockproc(c) : "(Not Blocking)"));
 
 	return 0;
 }
diff --git a/apps/app_externalivr.c b/apps/app_externalivr.c
index 5873a64084..0dee58ceaa 100644
--- a/apps/app_externalivr.c
+++ b/apps/app_externalivr.c
@@ -640,7 +640,7 @@ static int eivr_comm(struct ast_channel *chan, struct ivr_localuser *u,
 	}
 
  	while (1) {
- 		if (ast_test_flag(chan, AST_FLAG_ZOMBIE)) {
+ 		if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_ZOMBIE)) {
  			ast_chan_log(LOG_ERROR, chan, "Is a zombie\n");
  			break;
  		}
diff --git a/apps/app_followme.c b/apps/app_followme.c
index c4d1a2d673..5afa978fb3 100644
--- a/apps/app_followme.c
+++ b/apps/app_followme.c
@@ -645,7 +645,7 @@ static struct ast_channel *wait_for_winner(struct findme_user_listptr *findme_us
 					tmpto = ast_sched_wait(ast_channel_sched(tmpuser->ochan));
 					if (tmpto > 0 && tmpto < to)
 						to = tmpto;
-					else if (tmpto < 0 && !tmpuser->ochan->timingfunc) {
+					else if (tmpto < 0 && !ast_channel_timingfunc(tmpuser->ochan)) {
 						ast_stopstream(tmpuser->ochan);
 						if (tmpuser->state == 1) {
 							ast_verb(3, "Playback of the call-from file appears to be done.\n");
diff --git a/apps/app_macro.c b/apps/app_macro.c
index cebfae7afc..8f10d119e0 100644
--- a/apps/app_macro.c
+++ b/apps/app_macro.c
@@ -373,8 +373,8 @@ static int _macro_exec(struct ast_channel *chan, const char *data, int exclusive
 		argc++;
 	}
 	ast_channel_unlock(chan);
-	autoloopflag = ast_test_flag(chan, AST_FLAG_IN_AUTOLOOP);
-	ast_set_flag(chan, AST_FLAG_IN_AUTOLOOP);
+	autoloopflag = ast_test_flag(ast_channel_flags(chan), AST_FLAG_IN_AUTOLOOP);
+	ast_set_flag(ast_channel_flags(chan), AST_FLAG_IN_AUTOLOOP);
 	while (ast_exists_extension(chan, ast_channel_context(chan), ast_channel_exten(chan), ast_channel_priority(chan),
 		S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL))) {
 		struct ast_context *c;
@@ -512,7 +512,7 @@ static int _macro_exec(struct ast_channel *chan, const char *data, int exclusive
 	/* Reset the depth back to what it was when the routine was entered (like if we called Macro recursively) */
 	snprintf(depthc, sizeof(depthc), "%d", depth);
 	pbx_builtin_setvar_helper(chan, "MACRO_DEPTH", depthc);
-	ast_set2_flag(chan, autoloopflag, AST_FLAG_IN_AUTOLOOP);
+	ast_set2_flag(ast_channel_flags(chan), autoloopflag, AST_FLAG_IN_AUTOLOOP);
 
   	for (x = 1; x < argc; x++) {
   		/* Restore old arguments and delete ours */
diff --git a/apps/app_mixmonitor.c b/apps/app_mixmonitor.c
index 88c8f88df0..a89b6cc5dd 100644
--- a/apps/app_mixmonitor.c
+++ b/apps/app_mixmonitor.c
@@ -375,7 +375,7 @@ static int startmon(struct ast_channel *chan, struct ast_audiohook *audiohook)
 
 	ast_audiohook_attach(chan, audiohook);
 
-	if (!res && ast_test_flag(chan, AST_FLAG_NBRIDGE) && (peer = ast_bridged_channel(chan)))
+	if (!res && ast_test_flag(ast_channel_flags(chan), AST_FLAG_NBRIDGE) && (peer = ast_bridged_channel(chan)))
 		ast_softhangup(peer, AST_SOFTHANGUP_UNBRIDGE);	
 
 	return res;
diff --git a/apps/app_parkandannounce.c b/apps/app_parkandannounce.c
index dce000970b..172f0236cd 100644
--- a/apps/app_parkandannounce.c
+++ b/apps/app_parkandannounce.c
@@ -137,7 +137,7 @@ static int parkandannounce_exec(struct ast_channel *chan, const char *data)
 	ast_verb(3, "Dial Tech,String: (%s,%s)\n", dialtech, args.dial);
 
 	if (!ast_strlen_zero(args.return_context)) {
-		ast_clear_flag(chan, AST_FLAG_IN_AUTOLOOP);
+		ast_clear_flag(ast_channel_flags(chan), AST_FLAG_IN_AUTOLOOP);
 		ast_parseable_goto(chan, args.return_context);
 	}
 
diff --git a/apps/app_queue.c b/apps/app_queue.c
index 7871a3d12e..ef3223b53a 100644
--- a/apps/app_queue.c
+++ b/apps/app_queue.c
@@ -3023,7 +3023,7 @@ static void hangupcalls(struct callattempt *outgoing, struct ast_channel *except
 		/* Hangup any existing lines we have open */
 		if (outgoing->chan && (outgoing->chan != exception)) {
 			if (exception || cancel_answered_elsewhere)
-				ast_set_flag(outgoing->chan, AST_FLAG_ANSWERED_ELSEWHERE);
+				ast_set_flag(ast_channel_flags(outgoing->chan), AST_FLAG_ANSWERED_ELSEWHERE);
 			ast_hangup(outgoing->chan);
 		}
 		oo = outgoing;
@@ -3273,7 +3273,7 @@ static int ring_entry(struct queue_ent *qe, struct callattempt *tmp, int *busies
 	ast_channel_lock_both(tmp->chan, qe->chan);
 
 	if (qe->cancel_answered_elsewhere) {
-		ast_set_flag(tmp->chan, AST_FLAG_ANSWERED_ELSEWHERE);
+		ast_set_flag(ast_channel_flags(tmp->chan), AST_FLAG_ANSWERED_ELSEWHERE);
 	}
 	ast_channel_appl_set(tmp->chan, "AppQueue");
 	ast_channel_data_set(tmp->chan, "(Outgoing Line)");
@@ -4646,7 +4646,7 @@ static int try_calling(struct queue_ent *qe, const struct ast_flags opts, char *
 	/* if the calling channel has the ANSWERED_ELSEWHERE flag set, make sure this is inherited. 
 		(this is mainly to support chan_local)
 	*/
-	if (ast_test_flag(qe->chan, AST_FLAG_ANSWERED_ELSEWHERE)) {
+	if (ast_test_flag(ast_channel_flags(qe->chan), AST_FLAG_ANSWERED_ELSEWHERE)) {
 		qe->cancel_answered_elsewhere = 1;
 	}
 
diff --git a/apps/app_speech_utils.c b/apps/app_speech_utils.c
index fdf67bb90e..62a8d729a1 100644
--- a/apps/app_speech_utils.c
+++ b/apps/app_speech_utils.c
@@ -721,7 +721,7 @@ static int speech_background(struct ast_channel *chan, const char *data)
 	/* Okay it's streaming so go into a loop grabbing frames! */
 	while (done == 0) {
 		/* If the filename is null and stream is not running, start up a new sound file */
-		if (!quieted && (ast_channel_streamid(chan) == -1 && chan->timingfunc == NULL) && (filename = strsep(&filename_tmp, "&"))) {
+		if (!quieted && (ast_channel_streamid(chan) == -1 && ast_channel_timingfunc(chan) == NULL) && (filename = strsep(&filename_tmp, "&"))) {
 			/* Discard old stream information */
 			ast_stopstream(chan);
 			/* Start new stream */
@@ -769,7 +769,7 @@ static int speech_background(struct ast_channel *chan, const char *data)
 		switch (speech->state) {
 		case AST_SPEECH_STATE_READY:
 			/* If audio playback has stopped do a check for timeout purposes */
-			if (ast_channel_streamid(chan) == -1 && chan->timingfunc == NULL)
+			if (ast_channel_streamid(chan) == -1 && ast_channel_timingfunc(chan) == NULL)
 				ast_stopstream(chan);
 			if (!quieted && ast_channel_stream(chan) == NULL && timeout && started == 0 && !filename_tmp) {
 				if (timeout == -1) {
@@ -795,7 +795,7 @@ static int speech_background(struct ast_channel *chan, const char *data)
 							speech_streamfile(chan, speech->processing_sound, ast_channel_language(chan));
 						}
 					}
-				} else if (ast_channel_streamid(chan) == -1 && chan->timingfunc == NULL) {
+				} else if (ast_channel_streamid(chan) == -1 && ast_channel_timingfunc(chan) == NULL) {
 					ast_stopstream(chan);
 					if (speech->processing_sound != NULL) {
 						if (strlen(speech->processing_sound) > 0 && strcasecmp(speech->processing_sound, "none")) {
diff --git a/apps/app_stack.c b/apps/app_stack.c
index 28bd3cfb4c..8f7ab0e784 100644
--- a/apps/app_stack.c
+++ b/apps/app_stack.c
@@ -445,10 +445,10 @@ static int gosub_exec(struct ast_channel *chan, const char *data)
 	}
 
 	if (!ast_exists_extension(chan, ast_channel_context(chan), ast_channel_exten(chan),
-		ast_test_flag(chan, AST_FLAG_IN_AUTOLOOP) ? ast_channel_priority(chan) + 1 : ast_channel_priority(chan),
+		ast_test_flag(ast_channel_flags(chan), AST_FLAG_IN_AUTOLOOP) ? ast_channel_priority(chan) + 1 : ast_channel_priority(chan),
 		S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL))) {
 		ast_log(LOG_ERROR, "Attempt to reach a non-existent destination for gosub: (Context:%s, Extension:%s, Priority:%d)\n",
-				ast_channel_context(chan), ast_channel_exten(chan), ast_test_flag(chan, AST_FLAG_IN_AUTOLOOP) ? ast_channel_priority(chan) + 1 : ast_channel_priority(chan));
+				ast_channel_context(chan), ast_channel_exten(chan), ast_test_flag(ast_channel_flags(chan), AST_FLAG_IN_AUTOLOOP) ? ast_channel_priority(chan) + 1 : ast_channel_priority(chan));
 		ast_channel_context_set(chan, newframe->context);
 		ast_channel_exten_set(chan, newframe->extension);
 		ast_channel_priority_set(chan, newframe->priority - 1);
diff --git a/apps/app_talkdetect.c b/apps/app_talkdetect.c
index 791081db56..5ef80c33c0 100644
--- a/apps/app_talkdetect.c
+++ b/apps/app_talkdetect.c
@@ -151,7 +151,7 @@ static int background_detect_exec(struct ast_channel *chan, const char *data)
 		detection_start = ast_tvnow();
 		while (ast_channel_stream(chan)) {
 			res = ast_sched_wait(ast_channel_sched(chan));
-			if ((res < 0) && !chan->timingfunc) {
+			if ((res < 0) && !ast_channel_timingfunc(chan)) {
 				res = 0;
 				break;
 			}
diff --git a/bridges/bridge_multiplexed.c b/bridges/bridge_multiplexed.c
index 8d18ab548f..cd3026647d 100644
--- a/bridges/bridge_multiplexed.c
+++ b/bridges/bridge_multiplexed.c
@@ -236,11 +236,11 @@ static void *multiplexed_thread_function(void *data)
 				}
 			}
 		}
-		if (winner && winner->bridge) {
-			struct ast_bridge *bridge = winner->bridge;
+		if (winner && ast_channel_internal_bridge(winner)) {
+			struct ast_bridge *bridge = ast_channel_internal_bridge(winner);
 			int stop = 0;
 			ao2_unlock(multiplexed_thread);
-			while ((bridge = winner->bridge) && ao2_trylock(bridge)) {
+			while ((bridge = ast_channel_internal_bridge(winner)) && ao2_trylock(bridge)) {
 				sched_yield();
 				if (multiplexed_thread->thread == AST_PTHREADT_STOP) {
 					stop = 1;
diff --git a/channels/chan_agent.c b/channels/chan_agent.c
index 836154092d..0c79a66de3 100644
--- a/channels/chan_agent.c
+++ b/channels/chan_agent.c
@@ -601,7 +601,7 @@ static struct ast_frame *agent_read(struct ast_channel *ast)
 		p->start = cur_time;
 	}
 	if (p->chan) {
-		ast_copy_flags(p->chan, ast, AST_FLAG_EXCEPTION);
+		ast_copy_flags(ast_channel_flags(p->chan), ast_channel_flags(ast), AST_FLAG_EXCEPTION);
 		ast_channel_fdno_set(p->chan, (ast_channel_fdno(ast) == AST_AGENT_FD) ? AST_TIMING_FD : ast_channel_fdno(ast));
 		f = ast_read(p->chan);
 	} else
@@ -609,7 +609,7 @@ static struct ast_frame *agent_read(struct ast_channel *ast)
 	if (!f) {
 		/* If there's a channel, make it NULL */
 		if (p->chan) {
-			p->chan->_bridge = NULL;
+			ast_channel_internal_bridged_channel_set(p->chan, NULL);
 			p->chan = NULL;
 			ast_devstate_changed(AST_DEVICE_UNAVAILABLE, "Agent/%s", p->agent);
 			p->acknowledged = 0;
@@ -697,11 +697,11 @@ static struct ast_frame *agent_read(struct ast_channel *ast)
 	}
 
 	CLEANUP(ast,p);
-	if (p->chan && !p->chan->_bridge) {
+	if (p->chan && !ast_channel_internal_bridged_channel(p->chan)) {
 		if (strcasecmp(ast_channel_tech(p->chan)->type, "Local")) {
-			p->chan->_bridge = ast;
+			ast_channel_internal_bridged_channel_set(p->chan, ast);
 			if (p->chan)
-				ast_debug(1, "Bridge on '%s' being set to '%s' (3)\n", ast_channel_name(p->chan), ast_channel_name(p->chan->_bridge));
+				ast_debug(1, "Bridge on '%s' being set to '%s' (3)\n", ast_channel_name(p->chan), ast_channel_name(ast_channel_internal_bridged_channel(p->chan)));
 		}
 	}
 	ast_mutex_unlock(&p->lock);
@@ -964,7 +964,7 @@ static int agent_hangup(struct ast_channel *ast)
 	} else
 		p->start = 0;
 	if (p->chan) {
-		p->chan->_bridge = NULL;
+		ast_channel_internal_bridged_channel_set(p->chan, NULL);
 		/* If they're dead, go ahead and hang up on the agent now */
 		if (p->dead) {
 			ast_channel_lock(p->chan);
@@ -1083,8 +1083,8 @@ static struct ast_channel *agent_bridgedchannel(struct ast_channel *chan, struct
 
 	if (p) {
 		if (chan == p->chan)
-			ret = bridge->_bridge;
-		else if (chan == bridge->_bridge)
+			ret = ast_channel_internal_bridged_channel(bridge);
+		else if (chan == ast_channel_internal_bridged_channel(bridge))
 			ret = p->chan;
 	}
 
@@ -1586,7 +1586,7 @@ static int action_agents(struct mansession *s, const struct message *m)
 
 		if (p->chan) {
 			loginChan = ast_strdupa(ast_channel_name(p->chan));
-			if (owner && owner->_bridge) {
+			if (owner && ast_channel_internal_bridged_channel(owner)) {
 				talkingto = S_COR(ast_channel_caller(p->chan)->id.number.valid,
 					ast_channel_caller(p->chan)->id.number.str, "n/a");
 				if ((bridge = ast_bridged_channel(owner))) {
diff --git a/channels/chan_bridge.c b/channels/chan_bridge.c
index 3ec157601c..1670cba650 100644
--- a/channels/chan_bridge.c
+++ b/channels/chan_bridge.c
@@ -121,12 +121,12 @@ static int bridge_call(struct ast_channel *ast, const char *dest, int timeout)
 	struct bridge_pvt *p = ast_channel_tech_pvt(ast);
 
 	/* If no bridge has been provided on the input channel, bail out */
-	if (!ast->bridge) {
+	if (!ast_channel_internal_bridge(ast)) {
 		return -1;
 	}
 
 	/* Impart the output channel upon the given bridge of the input channel */
-	ast_bridge_impart(p->input->bridge, p->output, NULL, NULL, 0);
+	ast_bridge_impart(ast_channel_internal_bridge(p->input), p->output, NULL, NULL, 0);
 
 	return 0;
 }
diff --git a/channels/chan_dahdi.c b/channels/chan_dahdi.c
index 6751d0d0c6..5dad539101 100644
--- a/channels/chan_dahdi.c
+++ b/channels/chan_dahdi.c
@@ -7741,7 +7741,7 @@ static int attempt_transfer(struct dahdi_pvt *p)
 	} else {
 		ast_debug(1, "Neither %s nor %s are in a bridge, nothing to transfer\n",
 			ast_channel_name(p->subs[SUB_REAL].owner), ast_channel_name(p->subs[SUB_THREEWAY].owner));
-		ast_channel_softhangup_internal_flag_set(p->subs[SUB_THREEWAY].owner, ast_channel_softhangup_internal_flag(p->subs[SUB_THREEWAY].owner) | AST_SOFTHANGUP_DEV);
+		ast_channel_softhangup_internal_flag_add(p->subs[SUB_THREEWAY].owner, AST_SOFTHANGUP_DEV);
 		return -1;
 	}
 	return 0;
@@ -9150,7 +9150,7 @@ static struct ast_frame *dahdi_read(struct ast_channel *ast)
 	readbuf = ((unsigned char *)p->subs[idx].buffer) + AST_FRIENDLY_OFFSET;
 	CHECK_BLOCKING(ast);
 	res = read(p->subs[idx].dfd, readbuf, p->subs[idx].linear ? READ_SIZE * 2 : READ_SIZE);
-	ast_clear_flag(ast, AST_FLAG_BLOCKING);
+	ast_clear_flag(ast_channel_flags(ast), AST_FLAG_BLOCKING);
 	/* Check for hangup */
 	if (res < 0) {
 		f = NULL;
@@ -10549,7 +10549,7 @@ static void *analog_ss_thread(void *data)
 				 * emulation.  The DTMF digits can come so fast that emulation
 				 * can drop some of them.
 				 */
-				ast_set_flag(chan, AST_FLAG_END_DTMF_ONLY);
+				ast_set_flag(ast_channel_flags(chan), AST_FLAG_END_DTMF_ONLY);
 				res = 4000;/* This is a typical OFF time between rings. */
 				for (;;) {
 					struct ast_frame *f;
@@ -10580,7 +10580,7 @@ static void *analog_ss_thread(void *data)
 						ast_channel_state(chan) == AST_STATE_RINGING)
 						break; /* Got ring */
 				}
-				ast_clear_flag(chan, AST_FLAG_END_DTMF_ONLY);
+				ast_clear_flag(ast_channel_flags(chan), AST_FLAG_END_DTMF_ONLY);
 				dtmfbuf[k] = '\0';
 				dahdi_setlinear(p->subs[idx].dfd, p->subs[idx].linear);
 				/* Got cid and ring. */
diff --git a/channels/chan_local.c b/channels/chan_local.c
index c6780d223c..c0657c97be 100644
--- a/channels/chan_local.c
+++ b/channels/chan_local.c
@@ -339,8 +339,8 @@ static struct ast_channel *local_bridgedchannel(struct ast_channel *chan, struct
 		/* Now see if the opposite channel is bridged to anything */
 		if (!bridged) {
 			bridged = bridge;
-		} else if (bridged->_bridge) {
-			bridged = bridged->_bridge;
+		} else if (ast_channel_internal_bridged_channel(bridged)) {
+			bridged = ast_channel_internal_bridged_channel(bridged);
 		}
 	}
 
@@ -502,7 +502,7 @@ static void check_bridge(struct local_pvt *p)
 	/* since we had to unlock p to get the bridged chan, validate our
 	 * data once again and verify the bridged channel is what we expect
 	 * it to be in order to perform this optimization */
-	if (ast_test_flag(p, LOCAL_ALREADY_MASQED) || !p->owner || !p->chan || (p->chan->_bridge != bridged_chan)) {
+	if (ast_test_flag(p, LOCAL_ALREADY_MASQED) || !p->owner || !p->chan || (ast_channel_internal_bridged_channel(p->chan) != bridged_chan)) {
 		return;
 	}
 
@@ -511,24 +511,24 @@ static void check_bridge(struct local_pvt *p)
 	   frames on the owner channel (because they would be transferred to the
 	   outbound channel during the masquerade)
 	*/
-	if (p->chan->_bridge /* Not ast_bridged_channel!  Only go one step! */ && AST_LIST_EMPTY(ast_channel_readq(p->owner))) {
+	if (ast_channel_internal_bridged_channel(p->chan) /* Not ast_bridged_channel!  Only go one step! */ && AST_LIST_EMPTY(ast_channel_readq(p->owner))) {
 		/* Masquerade bridged channel into owner */
 		/* Lock everything we need, one by one, and give up if
 		   we can't get everything.  Remember, we'll get another
 		   chance in just a little bit */
-		if (!ast_channel_trylock(p->chan->_bridge)) {
-			if (!ast_check_hangup(p->chan->_bridge)) {
+		if (!ast_channel_trylock(ast_channel_internal_bridged_channel(p->chan))) {
+			if (!ast_check_hangup(ast_channel_internal_bridged_channel(p->chan))) {
 				if (!ast_channel_trylock(p->owner)) {
 					if (!ast_check_hangup(p->owner)) {
-						if (ast_channel_monitor(p->owner) && !ast_channel_monitor(p->chan->_bridge)) {
+						if (ast_channel_monitor(p->owner) && !ast_channel_monitor(ast_channel_internal_bridged_channel(p->chan))) {
 							/* If a local channel is being monitored, we don't want a masquerade
 							 * to cause the monitor to go away. Since the masquerade swaps the monitors,
 							 * pre-swapping the monitors before the masquerade will ensure that the monitor
 							 * ends up where it is expected.
 							 */
 							tmp = ast_channel_monitor(p->owner);
-							ast_channel_monitor_set(p->owner, ast_channel_monitor(p->chan->_bridge));
-							ast_channel_monitor_set(p->chan->_bridge, tmp);
+							ast_channel_monitor_set(p->owner, ast_channel_monitor(ast_channel_internal_bridged_channel(p->chan)));
+							ast_channel_monitor_set(ast_channel_internal_bridged_channel(p->chan), tmp);
 						}
 						if (ast_channel_audiohooks(p->chan)) {
 							struct ast_audiohook_list *audiohooks_swapper;
@@ -547,26 +547,26 @@ static void check_bridge(struct local_pvt *p)
 						if (ast_channel_caller(p->owner)->id.name.valid || ast_channel_caller(p->owner)->id.number.valid
 							|| ast_channel_caller(p->owner)->id.subaddress.valid || ast_channel_caller(p->owner)->ani.name.valid
 							|| ast_channel_caller(p->owner)->ani.number.valid || ast_channel_caller(p->owner)->ani.subaddress.valid) {
-							SWAP(*ast_channel_caller(p->owner), *ast_channel_caller(p->chan->_bridge));
+							SWAP(*ast_channel_caller(p->owner), *ast_channel_caller(ast_channel_internal_bridged_channel(p->chan)));
 						}
 						if (ast_channel_redirecting(p->owner)->from.name.valid || ast_channel_redirecting(p->owner)->from.number.valid
 							|| ast_channel_redirecting(p->owner)->from.subaddress.valid || ast_channel_redirecting(p->owner)->to.name.valid
 							|| ast_channel_redirecting(p->owner)->to.number.valid || ast_channel_redirecting(p->owner)->to.subaddress.valid) {
-							SWAP(*ast_channel_redirecting(p->owner), *ast_channel_redirecting(p->chan->_bridge));
+							SWAP(*ast_channel_redirecting(p->owner), *ast_channel_redirecting(ast_channel_internal_bridged_channel(p->chan)));
 						}
 						if (ast_channel_dialed(p->owner)->number.str || ast_channel_dialed(p->owner)->subaddress.valid) {
-							SWAP(*ast_channel_dialed(p->owner), *ast_channel_dialed(p->chan->_bridge));
+							SWAP(*ast_channel_dialed(p->owner), *ast_channel_dialed(ast_channel_internal_bridged_channel(p->chan)));
 						}
 
 
 						ast_app_group_update(p->chan, p->owner);
-						ast_channel_masquerade(p->owner, p->chan->_bridge);
+						ast_channel_masquerade(p->owner, ast_channel_internal_bridged_channel(p->chan));
 						ast_set_flag(p, LOCAL_ALREADY_MASQED);
 					}
 					ast_channel_unlock(p->owner);
 				}
 			}
-			ast_channel_unlock(p->chan->_bridge);
+			ast_channel_unlock(ast_channel_internal_bridged_channel(p->chan));
 		}
 	}
 }
@@ -629,7 +629,7 @@ static int local_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
 	}
 
 	/* Do not let a masquerade cause a Local channel to be bridged to itself! */
-	if (!ast_check_hangup(newchan) && ((p->owner && p->owner->_bridge == p->chan) || (p->chan && p->chan->_bridge == p->owner))) {
+	if (!ast_check_hangup(newchan) && ((p->owner && ast_channel_internal_bridged_channel(p->owner) == p->chan) || (p->chan && ast_channel_internal_bridged_channel(p->chan) == p->owner))) {
 		ast_log(LOG_WARNING, "You can not bridge a Local channel to itself!\n");
 		ao2_unlock(p);
 		ast_queue_hangup(newchan);
@@ -859,8 +859,8 @@ static int local_call(struct ast_channel *ast, const char *dest, int timeout)
 	ast_channel_cc_params_init(chan, ast_channel_get_cc_config_params(owner));
 
 	/* Make sure we inherit the ANSWERED_ELSEWHERE flag if it's set on the queue/dial call request in the dialplan */
-	if (ast_test_flag(ast, AST_FLAG_ANSWERED_ELSEWHERE)) {
-		ast_set_flag(chan, AST_FLAG_ANSWERED_ELSEWHERE);
+	if (ast_test_flag(ast_channel_flags(ast), AST_FLAG_ANSWERED_ELSEWHERE)) {
+		ast_set_flag(ast_channel_flags(chan), AST_FLAG_ANSWERED_ELSEWHERE);
 	}
 
 	/* copy the channel variables from the incoming channel to the outgoing channel */
@@ -980,8 +980,8 @@ static int local_hangup(struct ast_channel *ast)
 
 	isoutbound = IS_OUTBOUND(ast, p); /* just comparing pointer of ast */
 
-	if (p->chan && ast_test_flag(ast, AST_FLAG_ANSWERED_ELSEWHERE)) {
-		ast_set_flag(p->chan, AST_FLAG_ANSWERED_ELSEWHERE);
+	if (p->chan && ast_test_flag(ast_channel_flags(ast), AST_FLAG_ANSWERED_ELSEWHERE)) {
+		ast_set_flag(ast_channel_flags(p->chan), AST_FLAG_ANSWERED_ELSEWHERE);
 		ast_debug(2, "This local call has the ANSWERED_ELSEWHERE flag set.\n");
 	}
 
diff --git a/channels/chan_phone.c b/channels/chan_phone.c
index f7e7c335eb..a781b232a9 100644
--- a/channels/chan_phone.c
+++ b/channels/chan_phone.c
@@ -563,7 +563,7 @@ static struct ast_frame  *phone_read(struct ast_channel *ast)
 	/* Try to read some data... */
 	CHECK_BLOCKING(ast);
 	res = read(p->fd, p->buf, PHONE_MAX_BUF);
-	ast_clear_flag(ast, AST_FLAG_BLOCKING);
+	ast_clear_flag(ast_channel_flags(ast), AST_FLAG_BLOCKING);
 	if (res < 0) {
 #if 0
 		if (errno == EAGAIN) {
diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index b955566a8b..3aa2bf2624 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -6328,7 +6328,7 @@ static int sip_hangup(struct ast_channel *ast)
 		ast_debug(1, "Asked to hangup channel that was not connected\n");
 		return 0;
 	}
-	if (ast_test_flag(ast, AST_FLAG_ANSWERED_ELSEWHERE) || ast_channel_hangupcause(ast) == AST_CAUSE_ANSWERED_ELSEWHERE) {
+	if (ast_test_flag(ast_channel_flags(ast), AST_FLAG_ANSWERED_ELSEWHERE) || ast_channel_hangupcause(ast) == AST_CAUSE_ANSWERED_ELSEWHERE) {
 		ast_debug(1, "This call was answered elsewhere");
 		if (ast_channel_hangupcause(ast) == AST_CAUSE_ANSWERED_ELSEWHERE) {
 			ast_debug(1, "####### It's the cause code, buddy. The cause code!!!\n");
@@ -6358,7 +6358,7 @@ static int sip_hangup(struct ast_channel *ast)
 		return 0;
 	}
 
-	if (ast_test_flag(ast, AST_FLAG_ZOMBIE)) {
+	if (ast_test_flag(ast_channel_flags(ast), AST_FLAG_ZOMBIE)) {
 		if (p->refer)
 			ast_debug(1, "SIP Transfer: Hanging up Zombie channel %s after transfer ... Call-ID: %s\n", ast_channel_name(ast), p->callid);
 		else
@@ -6690,9 +6690,9 @@ static int sip_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
 	int ret = -1;
 	struct sip_pvt *p;
 
-	if (newchan && ast_test_flag(newchan, AST_FLAG_ZOMBIE))
+	if (newchan && ast_test_flag(ast_channel_flags(newchan), AST_FLAG_ZOMBIE))
 		ast_debug(1, "New channel is zombie\n");
-	if (oldchan && ast_test_flag(oldchan, AST_FLAG_ZOMBIE))
+	if (oldchan && ast_test_flag(ast_channel_flags(oldchan), AST_FLAG_ZOMBIE))
 		ast_debug(1, "Old channel is zombie\n");
 
 	if (!newchan || !ast_channel_tech_pvt(newchan)) {
@@ -22415,7 +22415,7 @@ static int sip_pickup(struct ast_channel *chan)
 static void ast_quiet_chan(struct ast_channel *chan)
 {
 	if (chan && ast_channel_state(chan) == AST_STATE_UP) {
-		if (ast_test_flag(chan, AST_FLAG_MOH))
+		if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_MOH))
 			ast_moh_stop(chan);
 		else if (ast_channel_generatordata(chan))
 			ast_deactivate_generator(chan);
diff --git a/channels/chan_unistim.c b/channels/chan_unistim.c
index 48fde426b6..f131058655 100644
--- a/channels/chan_unistim.c
+++ b/channels/chan_unistim.c
@@ -2306,7 +2306,7 @@ static int write_history(struct unistimsession *pte, char way, char ismissed)
 static void unistim_quiet_chan(struct ast_channel *chan)
 {
 	if (chan && ast_channel_state(chan) == AST_STATE_UP) {
-		if (ast_test_flag(chan, AST_FLAG_MOH)) {
+		if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_MOH)) {
 			ast_moh_stop(chan);
 		} else if (ast_channel_generatordata(chan)) {
 			ast_deactivate_generator(chan);
@@ -2959,11 +2959,11 @@ static void swap_subs(struct unistim_subchannel *a, struct unistim_subchannel *b
 /* Step 1 : Music On Hold for peer, Dialing screen for us */
 static void transfer_call_step1(struct unistimsession *pte)
 {
-	struct unistim_subchannel *sub, *sub_trans;
+	struct unistim_subchannel *sub /*, *sub_trans */;
 	struct unistim_device *d = pte->device;
 
 	sub = get_sub(d, SUB_REAL);
-	sub_trans = get_sub(d, SUB_THREEWAY);
+	/* sub_trans = get_sub(d, SUB_THREEWAY); */
 
 	if (!sub || !sub->owner) {
 		ast_log(LOG_WARNING, "Unable to find subchannel for music on hold\n");
@@ -4856,7 +4856,7 @@ static int unistim_hangup(struct ast_channel *ast)
 	refresh_all_favorite(s); /* Update favicons in case of DND keys */
 	if (s->state == STATE_RINGING && sub->subtype == SUB_RING) {
 		send_no_ring(s);
-		if (!ast_test_flag(ast, AST_FLAG_ANSWERED_ELSEWHERE) && ast_channel_hangupcause(ast) != AST_CAUSE_ANSWERED_ELSEWHERE) {
+		if (!ast_test_flag(ast_channel_flags(ast), AST_FLAG_ANSWERED_ELSEWHERE) && ast_channel_hangupcause(ast) != AST_CAUSE_ANSWERED_ELSEWHERE) {
 			d->missed_call++;
 			write_history(s, 'i', 1);
 		}
@@ -5872,7 +5872,7 @@ static char *unistim_show_info(struct ast_cli_entry *e, int cmd, struct ast_cli_
 			if (!sub->owner) {
 				tmp = (void *) -42;
 			} else {
-				tmp = sub->owner->_bridge;
+				tmp = ast_channel_internal_bridged_channel(sub->owner);
 			}
 			ast_cli(a->fd,
 					"-->subtype=%s chan=%p rtp=%p bridge=%p line=%p alreadygone=%d softkey=%d\n",
diff --git a/channels/chan_vpb.cc b/channels/chan_vpb.cc
index 465c244089..e54cebda00 100644
--- a/channels/chan_vpb.cc
+++ b/channels/chan_vpb.cc
@@ -2257,8 +2257,8 @@ static void *do_chanreads(void *pvt)
 				bridgerec = 0;
 		} else {
 			ast_verb(5, "%s: chanreads: No native bridge.\n", p->dev);
-			if (p->owner->_bridge) {
-				ast_verb(5, "%s: chanreads: Got Asterisk bridge with [%s].\n", p->dev, ast_channel_name(p->owner->_bridge));
+			if (ast_channel_internal_bridged_channel(p->owner)) {
+				ast_verb(5, "%s: chanreads: Got Asterisk bridge with [%s].\n", p->dev, ast_channel_name(ast_channel_internal_bridged_channel(p->owner)));
 				bridgerec = 1;
 			} else {
 				bridgerec = 0;
diff --git a/channels/sig_analog.c b/channels/sig_analog.c
index 78963bb56d..7112cf29da 100644
--- a/channels/sig_analog.c
+++ b/channels/sig_analog.c
@@ -2402,7 +2402,7 @@ static void *__analog_ss_thread(void *data)
 				 * emulation.  The DTMF digits can come so fast that emulation
 				 * can drop some of them.
 				 */
-				ast_set_flag(chan, AST_FLAG_END_DTMF_ONLY);
+				ast_set_flag(ast_channel_flags(chan), AST_FLAG_END_DTMF_ONLY);
 				res = 4000;/* This is a typical OFF time between rings. */
 				for (;;) {
 					struct ast_frame *f;
@@ -2435,7 +2435,7 @@ static void *__analog_ss_thread(void *data)
 						break; /* Got ring */
 					}
 				}
-				ast_clear_flag(chan, AST_FLAG_END_DTMF_ONLY);
+				ast_clear_flag(ast_channel_flags(chan), AST_FLAG_END_DTMF_ONLY);
 				dtmfbuf[k] = '\0';
 
 				analog_set_linear_mode(p, idx, oldlinearity);
diff --git a/include/asterisk/channel.h b/include/asterisk/channel.h
index 7b3a1443e1..292640bb43 100644
--- a/include/asterisk/channel.h
+++ b/include/asterisk/channel.h
@@ -713,6 +713,7 @@ AST_LIST_HEAD_NOLOCK(ast_datastore_list, ast_datastore);
 AST_LIST_HEAD_NOLOCK(ast_autochan_list, ast_autochan);
 AST_LIST_HEAD_NOLOCK(ast_readq_list, ast_frame);
 
+typedef int(*ast_timing_func_t)(const void *data);
 /*!
  * \page AstChannel ast_channel locking and reference tracking
  *
@@ -764,151 +765,7 @@ AST_LIST_HEAD_NOLOCK(ast_readq_list, ast_frame);
  * gets called before the channel goes away.
  */
 
-/*!
- * \brief Main Channel structure associated with a channel.
- *
- * \note XXX It is important to remember to increment .cleancount each time
- *       this structure is changed. XXX
- *
- * \note When adding fields to this structure, it is important to add the field
- *       'in position' with like-aligned fields, so as to keep the compiler from
- *       having to add padding to align fields. The structure's fields are sorted
- *       in this order: pointers, structures, long, int/enum, short, char. This
- *       is especially important on 64-bit architectures, where mixing 4-byte
- *       and 8-byte fields causes 4 bytes of padding to be added before many
- *       8-byte fields.
- */
-struct ast_channel {
-	const struct ast_channel_tech *__do_not_use_tech;		/*!< Technology (point to channel driver) */
-	void *__do_not_use_tech_pvt;					/*!< Private data used by the technology driver */
-	void *__do_not_use_music_state;				/*!< Music State*/
-	void *__do_not_use_generatordata;				/*!< Current generator data if there is any */
-	struct ast_generator *__do_not_use_generator;		/*!< Current active data generator */
-	struct ast_channel * _bridge;			/*!< Who are we bridged to, if we're bridged.
-							 *   Who is proxying for us, if we are proxied (i.e. chan_agent).
-							 *   Do not access directly, use ast_bridged_channel(chan) */
-	struct ast_channel *__do_not_use_masq;			/*!< Channel that will masquerade as us */
-	struct ast_channel *__do_not_use_masqr;			/*!< Who we are masquerading as */
-	const char *__do_not_use_blockproc;				/*!< Procedure causing blocking */
-	const char *__do_not_use_appl;				/*!< Current application */
-	const char *__do_not_use_data;				/*!< Data passed to current application */
-	struct ast_sched_context *__do_not_use_sched;                /*!< Schedule context */
-	struct ast_filestream *__do_not_use_stream;			/*!< Stream itself. */
-	struct ast_filestream *__do_not_use_vstream;			/*!< Video Stream itself. */
-	int (*timingfunc)(const void *data);
-	void *__do_not_use_timingdata;
-	struct ast_pbx *__do_not_use_pbx;				/*!< PBX private structure for this channel */
-	struct ast_trans_pvt *__do_not_use_writetrans;		/*!< Write translation path */
-	struct ast_trans_pvt *__do_not_use_readtrans;		/*!< Read translation path */
-	struct ast_audiohook_list *__do_not_use_audiohooks;
-	struct ast_framehook_list *__do_not_use_framehooks;
-	struct ast_cdr *__do_not_use_cdr;				/*!< Call Detail Record */
-	struct ast_tone_zone *__do_not_use_zone;			/*!< Tone zone as set in indications.conf or
-							 *   in the CHANNEL dialplan function */
-	struct ast_channel_monitor *__do_not_use_monitor;		/*!< Channel monitoring */
-#ifdef HAVE_EPOLL
-	struct ast_epoll_data *__do_not_use_epfd_data[AST_MAX_FDS];
-#endif
-
-	AST_DECLARE_STRING_FIELDS(
-		AST_STRING_FIELD(__do_not_use_name);         /*!< ASCII unique channel name */
-		AST_STRING_FIELD(__do_not_use_language);     /*!< Language requested for voice prompts */
-		AST_STRING_FIELD(__do_not_use_musicclass);   /*!< Default music class */
-		AST_STRING_FIELD(__do_not_use_accountcode);  /*!< Account code for billing */
-		AST_STRING_FIELD(__do_not_use_peeraccount);  /*!< Peer account code for billing */
-		AST_STRING_FIELD(__do_not_use_userfield);    /*!< Userfield for CEL billing */
-		AST_STRING_FIELD(__do_not_use_call_forward); /*!< Where to forward to if asked to dial on this interface */
-		AST_STRING_FIELD(__do_not_use_uniqueid);     /*!< Unique Channel Identifier */
-		AST_STRING_FIELD(__do_not_use_linkedid);     /*!< Linked Channel Identifier -- gets propagated by linkage */
-		AST_STRING_FIELD(__do_not_use_parkinglot);   /*! Default parking lot, if empty, default parking lot  */
-		AST_STRING_FIELD(__do_not_use_hangupsource); /*! Who is responsible for hanging up this channel */
-		AST_STRING_FIELD(__do_not_use_dialcontext);  /*!< Dial: Extension context that we were called from */
-	);
-
-	struct timeval __do_not_use_whentohangup;        		/*!< Non-zero, set to actual time when channel is to be hung up */
-	pthread_t blocker;				/*!< If anyone is blocking, this is them */
-
-	/*!
-	 * \brief Dialed/Called information.
-	 * \note Set on incoming channels to indicate the originally dialed party.
-	 * \note Dialed Number Identifier (DNID)
-	 */
-	struct ast_party_dialed __do_not_use_dialed;
-
-	/*!
-	 * \brief Channel Caller ID information.
-	 * \note The caller id information is the caller id of this
-	 * channel when it is used to initiate a call.
-	 */
-	struct ast_party_caller __do_not_use_caller;
-
-	/*!
-	 * \brief Channel Connected Line ID information.
-	 * \note The connected line information identifies the channel
-	 * connected/bridged to this channel.
-	 */
-	struct ast_party_connected_line __do_not_use_connected;
-
-	/*! \brief Redirecting/Diversion information */
-	struct ast_party_redirecting __do_not_use_redirecting;
-
-	struct ast_frame __do_not_use_dtmff;				/*!< DTMF frame */
-	struct varshead __do_not_use_varshead;			/*!< A linked list for channel variables. See \ref AstChanVar */
-	ast_group_t __do_not_use_callgroup;				/*!< Call group for call pickups */
-	ast_group_t __do_not_use_pickupgroup;			/*!< Pickup group - which calls groups can be picked up? */
-	struct ast_readq_list __do_not_use_readq;
-	struct ast_jb __do_not_use_jb;				/*!< The jitterbuffer state */
-	struct timeval __do_not_use_dtmf_tv;				/*!< The time that an in process digit began, or the last digit ended */
-	struct ast_datastore_list __do_not_use_datastores; /*!< Data stores on the channel */
-	struct ast_autochan_list __do_not_use_autochans; /*!< Autochans on the channel */
-	unsigned long __do_not_use_insmpl;				/*!< Track the read/written samples for monitor use */
-	unsigned long __do_not_use_outsmpl;				/*!< Track the read/written samples for monitor use */
-
-	int __do_not_use_fds[AST_MAX_FDS];				/*!< File descriptors for channel -- Drivers will poll on
-							 *   these file descriptors, so at least one must be non -1.
-							 *   See \arg \ref AstFileDesc */
-	int __do_not_use_softhangup;				/*!< Whether or not we have been hung up...  Do not set this value
-							 *   directly, use ast_softhangup() */
-	int __do_not_use_fdno;					/*!< Which fd had an event detected on */
-	int __do_not_use_streamid;					/*!< For streaming playback, the schedule ID */
-	int __do_not_use_vstreamid;					/*!< For streaming video playback, the schedule ID */
-	struct ast_format __do_not_use_oldwriteformat;  /*!< Original writer format */
-	int __do_not_use_timingfd;					/*!< Timing fd */
-	enum ast_channel_state __do_not_use_state;			/*!< State of line -- Don't write directly, use ast_setstate() */
-	int __do_not_use_rings;					/*!< Number of rings so far */
-	int __do_not_use_priority;					/*!< Dialplan: Current extension priority */
-	int __do_not_use_macropriority;				/*!< Macro: Current non-macro priority. See app_macro.c */
-	int __do_not_use_amaflags;					/*!< Set BEFORE PBX is started to determine AMA flags */
-	enum ast_channel_adsicpe __do_not_use_adsicpe;		/*!< Whether or not ADSI is detected on CPE */
-	unsigned int __do_not_use_fin;				/*!< Frames in counters. The high bit is a debug mask, so
-							 *   the counter is only in the remaining bits */
-	unsigned int __do_not_use_fout;				/*!< Frames out counters. The high bit is a debug mask, so
-							 *   the counter is only in the remaining bits */
-	int __do_not_use_hangupcause;				/*!< Why is the channel hanged up. See causes.h */
-	unsigned int flags;				/*!< channel flags of AST_FLAG_ type */
-	int __do_not_use_alertpipe[2];
-	struct ast_format_cap *__do_not_use_nativeformats;         /*!< Kinds of data this channel can natively handle */
-	struct ast_format __do_not_use_readformat;            /*!< Requested read format (after translation) */
-	struct ast_format __do_not_use_writeformat;           /*!< Requested write format (after translation) */
-	struct ast_format __do_not_use_rawreadformat;         /*!< Raw read format (before translation) */
-	struct ast_format __do_not_use_rawwriteformat;        /*!< Raw write format (before translation) */
-	unsigned int __do_not_use_emulate_dtmf_duration;		/*!< Number of ms left to emulate DTMF for */
-#ifdef HAVE_EPOLL
-	int __do_not_use_epfd;
-#endif
-	int __do_not_use_visible_indication;                         /*!< Indication currently playing on the channel */
-
-	unsigned short __do_not_use_transfercapability;		/*!< ISDN Transfer Capability - AST_FLAG_DIGITAL is not enough */
-
-	struct ast_bridge *bridge;                      /*!< Bridge this channel is participating in */
-	struct ast_timer *__do_not_use_timer;			/*!< timer object that provided timingfd */
-
-	char __do_not_use_context[AST_MAX_CONTEXT];			/*!< Dialplan: Current extension context */
-	char __do_not_use_exten[AST_MAX_EXTENSION];			/*!< Dialplan: Current extension number */
-	char __do_not_use_macrocontext[AST_MAX_CONTEXT];		/*!< Macro: Current non-macro context. See app_macro.c */
-	char __do_not_use_macroexten[AST_MAX_EXTENSION];		/*!< Macro: Current non-macro extension. See app_macro.c */
-	char __do_not_use_dtmf_digit_to_emulate;			/*!< Digit being emulated */
-};
+struct ast_channel;
 
 /*! \brief ast_channel_tech Properties */
 enum {
@@ -2473,12 +2330,12 @@ static inline enum ast_t38_state ast_channel_get_t38_state(struct ast_channel *c
 }
 
 #define CHECK_BLOCKING(c) do { 	 \
-	if (ast_test_flag(c, AST_FLAG_BLOCKING)) {\
-		ast_debug(1, "Thread %ld Blocking '%s', already blocked by thread %ld in procedure %s\n", (long) pthread_self(), ast_channel_name(c), (long) (c)->blocker, ast_channel_blockproc(c)); \
+	if (ast_test_flag(ast_channel_flags(c), AST_FLAG_BLOCKING)) {\
+		ast_debug(1, "Thread %ld Blocking '%s', already blocked by thread %ld in procedure %s\n", (long) pthread_self(), ast_channel_name(c), (long) ast_channel_blocker(c), ast_channel_blockproc(c)); \
 	} else { \
-		(c)->blocker = pthread_self(); \
+		ast_channel_blocker_set((c), pthread_self()); \
 		ast_channel_blockproc_set((c), __PRETTY_FUNCTION__); \
-		ast_set_flag(c, AST_FLAG_BLOCKING); \
+		ast_set_flag(ast_channel_flags(c), AST_FLAG_BLOCKING); \
 	} } while (0)
 
 ast_group_t ast_get_group(const char *s);
@@ -3739,50 +3596,50 @@ unsigned long ast_channel_insmpl(const struct ast_channel *chan);
 void ast_channel_insmpl_set(struct ast_channel *chan, unsigned long value);
 unsigned long ast_channel_outsmpl(const struct ast_channel *chan);
 void ast_channel_outsmpl_set(struct ast_channel *chan, unsigned long value);
-void * ast_channel_generatordata(const struct ast_channel *chan);
-void ast_channel_generatordata_set(struct ast_channel *chan, void * value);
-void * ast_channel_music_state(const struct ast_channel *chan);
-void ast_channel_music_state_set(struct ast_channel *chan, void * value);
-void * ast_channel_tech_pvt(const struct ast_channel *chan);
-void ast_channel_tech_pvt_set(struct ast_channel *chan, void * value);
-void * ast_channel_timingdata(const struct ast_channel *chan);
-void ast_channel_timingdata_set(struct ast_channel *chan, void * value);
-struct ast_audiohook_list * ast_channel_audiohooks(const struct ast_channel *chan);
-void ast_channel_audiohooks_set(struct ast_channel *chan, struct ast_audiohook_list * value);
-struct ast_cdr * ast_channel_cdr(const struct ast_channel *chan);
-void ast_channel_cdr_set(struct ast_channel *chan, struct ast_cdr * value);
-struct ast_channel * ast_channel__bridge(const struct ast_channel *chan);
-void ast_channel__bridge_set(struct ast_channel *chan, struct ast_channel * value);
-struct ast_channel * ast_channel_masq(const struct ast_channel *chan);
-void ast_channel_masq_set(struct ast_channel *chan, struct ast_channel * value);
-struct ast_channel * ast_channel_masqr(const struct ast_channel *chan);
-void ast_channel_masqr_set(struct ast_channel *chan, struct ast_channel * value);
-struct ast_channel_monitor * ast_channel_monitor(const struct ast_channel *chan);
-void ast_channel_monitor_set(struct ast_channel *chan, struct ast_channel_monitor * value);
-struct ast_filestream * ast_channel_stream(const struct ast_channel *chan);
-void ast_channel_stream_set(struct ast_channel *chan, struct ast_filestream * value);
-struct ast_filestream * ast_channel_vstream(const struct ast_channel *chan);
-void ast_channel_vstream_set(struct ast_channel *chan, struct ast_filestream * value);
-struct ast_format_cap * ast_channel_nativeformats(const struct ast_channel *chan);
-void ast_channel_nativeformats_set(struct ast_channel *chan, struct ast_format_cap * value);
-struct ast_framehook_list * ast_channel_framehooks(const struct ast_channel *chan);
-void ast_channel_framehooks_set(struct ast_channel *chan, struct ast_framehook_list * value);
-struct ast_generator * ast_channel_generator(const struct ast_channel *chan);
-void ast_channel_generator_set(struct ast_channel *chan, struct ast_generator * value);
-struct ast_pbx * ast_channel_pbx(const struct ast_channel *chan);
-void ast_channel_pbx_set(struct ast_channel *chan, struct ast_pbx * value);
-struct ast_sched_context * ast_channel_sched(const struct ast_channel *chan);
-void ast_channel_sched_set(struct ast_channel *chan, struct ast_sched_context * value);
-struct ast_timer * ast_channel_timer(const struct ast_channel *chan);
-void ast_channel_timer_set(struct ast_channel *chan, struct ast_timer * value);
-struct ast_tone_zone * ast_channel_zone(const struct ast_channel *chan);
-void ast_channel_zone_set(struct ast_channel *chan, struct ast_tone_zone * value);
-struct ast_trans_pvt * ast_channel_readtrans(const struct ast_channel *chan);
-void ast_channel_readtrans_set(struct ast_channel *chan, struct ast_trans_pvt * value);
-struct ast_trans_pvt * ast_channel_writetrans(const struct ast_channel *chan);
-void ast_channel_writetrans_set(struct ast_channel *chan, struct ast_trans_pvt * value);
-const struct ast_channel_tech * ast_channel_tech(const struct ast_channel *chan);
-void ast_channel_tech_set(struct ast_channel *chan, const struct ast_channel_tech * value);
+void *ast_channel_generatordata(const struct ast_channel *chan);
+void ast_channel_generatordata_set(struct ast_channel *chan, void *value);
+void *ast_channel_music_state(const struct ast_channel *chan);
+void ast_channel_music_state_set(struct ast_channel *chan, void *value);
+void *ast_channel_tech_pvt(const struct ast_channel *chan);
+void ast_channel_tech_pvt_set(struct ast_channel *chan, void *value);
+void *ast_channel_timingdata(const struct ast_channel *chan);
+void ast_channel_timingdata_set(struct ast_channel *chan, void *value);
+struct ast_audiohook_list *ast_channel_audiohooks(const struct ast_channel *chan);
+void ast_channel_audiohooks_set(struct ast_channel *chan, struct ast_audiohook_list *value);
+struct ast_cdr *ast_channel_cdr(const struct ast_channel *chan);
+void ast_channel_cdr_set(struct ast_channel *chan, struct ast_cdr *value);
+struct ast_channel *ast_channel__bridge(const struct ast_channel *chan);
+void ast_channel__bridge_set(struct ast_channel *chan, struct ast_channel *value);
+struct ast_channel *ast_channel_masq(const struct ast_channel *chan);
+void ast_channel_masq_set(struct ast_channel *chan, struct ast_channel *value);
+struct ast_channel *ast_channel_masqr(const struct ast_channel *chan);
+void ast_channel_masqr_set(struct ast_channel *chan, struct ast_channel *value);
+struct ast_channel_monitor *ast_channel_monitor(const struct ast_channel *chan);
+void ast_channel_monitor_set(struct ast_channel *chan, struct ast_channel_monitor *value);
+struct ast_filestream *ast_channel_stream(const struct ast_channel *chan);
+void ast_channel_stream_set(struct ast_channel *chan, struct ast_filestream *value);
+struct ast_filestream *ast_channel_vstream(const struct ast_channel *chan);
+void ast_channel_vstream_set(struct ast_channel *chan, struct ast_filestream *value);
+struct ast_format_cap *ast_channel_nativeformats(const struct ast_channel *chan);
+void ast_channel_nativeformats_set(struct ast_channel *chan, struct ast_format_cap *value);
+struct ast_framehook_list *ast_channel_framehooks(const struct ast_channel *chan);
+void ast_channel_framehooks_set(struct ast_channel *chan, struct ast_framehook_list *value);
+struct ast_generator *ast_channel_generator(const struct ast_channel *chan);
+void ast_channel_generator_set(struct ast_channel *chan, struct ast_generator *value);
+struct ast_pbx *ast_channel_pbx(const struct ast_channel *chan);
+void ast_channel_pbx_set(struct ast_channel *chan, struct ast_pbx *value);
+struct ast_sched_context *ast_channel_sched(const struct ast_channel *chan);
+void ast_channel_sched_set(struct ast_channel *chan, struct ast_sched_context *value);
+struct ast_timer *ast_channel_timer(const struct ast_channel *chan);
+void ast_channel_timer_set(struct ast_channel *chan, struct ast_timer *value);
+struct ast_tone_zone *ast_channel_zone(const struct ast_channel *chan);
+void ast_channel_zone_set(struct ast_channel *chan, struct ast_tone_zone *value);
+struct ast_trans_pvt *ast_channel_readtrans(const struct ast_channel *chan);
+void ast_channel_readtrans_set(struct ast_channel *chan, struct ast_trans_pvt *value);
+struct ast_trans_pvt *ast_channel_writetrans(const struct ast_channel *chan);
+void ast_channel_writetrans_set(struct ast_channel *chan, struct ast_trans_pvt *value);
+const struct ast_channel_tech *ast_channel_tech(const struct ast_channel *chan);
+void ast_channel_tech_set(struct ast_channel *chan, const struct ast_channel_tech *value);
 enum ast_channel_adsicpe ast_channel_adsicpe(const struct ast_channel *chan);
 void ast_channel_adsicpe_set(struct ast_channel *chan, enum ast_channel_adsicpe value);
 enum ast_channel_state ast_channel_state(const struct ast_channel *chan);
@@ -3792,7 +3649,7 @@ void ast_channel_state_set(struct ast_channel *chan, enum ast_channel_state);
 void ast_channel_softhangup_internal_flag_set(struct ast_channel *chan, int value);
 void ast_channel_softhangup_internal_flag_add(struct ast_channel *chan, int value);
 void ast_channel_softhangup_internal_flag_clear(struct ast_channel *chan, int value);
-int ast_channel_softhangup_internal_flag(struct ast_channel * chan);
+int ast_channel_softhangup_internal_flag(struct ast_channel *chan);
 
 /* Format getters */
 struct ast_format *ast_channel_oldwriteformat(struct ast_channel *chan);
@@ -3865,4 +3722,18 @@ int ast_channel_fd_isset(const struct ast_channel *chan, int which);
 struct ast_epoll_data *ast_channel_internal_epfd_data(const struct ast_channel *chan, int which);
 void ast_channel_internal_epfd_data_set(struct ast_channel *chan, int which , struct ast_epoll_data *value);
 #endif
+
+pthread_t ast_channel_blocker(const struct ast_channel *chan);
+void ast_channel_blocker_set(struct ast_channel *chan, pthread_t value);
+
+ast_timing_func_t ast_channel_timingfunc(const struct ast_channel *chan);
+void ast_channel_timingfunc_set(struct ast_channel *chan, ast_timing_func_t value);
+
+struct ast_bridge *ast_channel_internal_bridge(const struct ast_channel *chan);
+void ast_channel_internal_bridge_set(struct ast_channel *chan, struct ast_bridge *value);
+
+struct ast_channel *ast_channel_internal_bridged_channel(const struct ast_channel *chan);
+void ast_channel_internal_bridged_channel_set(struct ast_channel *chan, struct ast_channel *value);
+
+struct ast_flags *ast_channel_flags(struct ast_channel *chan);
 #endif /* _ASTERISK_CHANNEL_H */
diff --git a/main/app.c b/main/app.c
index 1719a11f1c..3cdb184325 100644
--- a/main/app.c
+++ b/main/app.c
@@ -558,9 +558,9 @@ static void *linear_alloc(struct ast_channel *chan, void *params)
 
 	/* In this case, params is already malloc'd */
 	if (ls->allowoverride) {
-		ast_set_flag(chan, AST_FLAG_WRITE_INT);
+		ast_set_flag(ast_channel_flags(chan), AST_FLAG_WRITE_INT);
 	} else {
-		ast_clear_flag(chan, AST_FLAG_WRITE_INT);
+		ast_clear_flag(ast_channel_flags(chan), AST_FLAG_WRITE_INT);
 	}
 
 	ast_format_copy(&ls->origwfmt, ast_channel_writeformat(chan));
diff --git a/main/autoservice.c b/main/autoservice.c
index fca180f5cb..96d2c5c18d 100644
--- a/main/autoservice.c
+++ b/main/autoservice.c
@@ -198,9 +198,9 @@ int ast_autoservice_start(struct ast_channel *chan)
 	as->use_count = 1;
 
 	ast_channel_lock(chan);
-	as->orig_end_dtmf_flag = ast_test_flag(chan, AST_FLAG_END_DTMF_ONLY) ? 1 : 0;
+	as->orig_end_dtmf_flag = ast_test_flag(ast_channel_flags(chan), AST_FLAG_END_DTMF_ONLY) ? 1 : 0;
 	if (!as->orig_end_dtmf_flag)
-		ast_set_flag(chan, AST_FLAG_END_DTMF_ONLY);
+		ast_set_flag(ast_channel_flags(chan), AST_FLAG_END_DTMF_ONLY);
 	ast_channel_unlock(chan);
 
 	AST_LIST_LOCK(&aslist);
@@ -282,7 +282,7 @@ int ast_autoservice_stop(struct ast_channel *chan)
 	}
 
 	if (!as->orig_end_dtmf_flag) {
-		ast_clear_flag(chan, AST_FLAG_END_DTMF_ONLY);
+		ast_clear_flag(ast_channel_flags(chan), AST_FLAG_END_DTMF_ONLY);
 	}
 
 	ast_channel_lock(chan);
diff --git a/main/bridging.c b/main/bridging.c
index 9a549691f4..66881c3f8e 100644
--- a/main/bridging.c
+++ b/main/bridging.c
@@ -818,7 +818,7 @@ static void bridge_channel_feature(struct ast_bridge *bridge, struct ast_bridge_
 	int look_for_dtmf = 1, dtmf_len = 0;
 
 	/* The channel is now under our control and we don't really want any begin frames to do our DTMF matching so disable 'em at the core level */
-	ast_set_flag(bridge_channel->chan, AST_FLAG_END_DTMF_ONLY);
+	ast_set_flag(ast_channel_flags(bridge_channel->chan), AST_FLAG_END_DTMF_ONLY);
 
 	/* Wait for DTMF on the channel and put it into a buffer. If the buffer matches any feature hook execute the hook. */
 	while (look_for_dtmf) {
@@ -863,7 +863,7 @@ static void bridge_channel_feature(struct ast_bridge *bridge, struct ast_bridge_
 	}
 
 	/* Since we are done bringing DTMF in return to using both begin and end frames */
-	ast_clear_flag(bridge_channel->chan, AST_FLAG_END_DTMF_ONLY);
+	ast_clear_flag(ast_channel_flags(bridge_channel->chan), AST_FLAG_END_DTMF_ONLY);
 
 	/* If a hook was actually matched execute it on this channel, otherwise stream up the DTMF to the other channels */
 	if (hook) {
@@ -967,7 +967,7 @@ static enum ast_bridge_channel_state bridge_channel_join(struct ast_bridge_chann
 	/* Actually execute the respective threading model, and keep our bridge thread alive */
 	while (bridge_channel->state == AST_BRIDGE_CHANNEL_STATE_WAIT) {
 		/* Update bridge pointer on channel */
-		bridge_channel->chan->bridge = bridge_channel->bridge;
+		ast_channel_internal_bridge_set(bridge_channel->chan, bridge_channel->bridge);
 		/* If the technology requires a thread and one is not running, start it up */
 		if (bridge_channel->bridge->thread == AST_PTHREADT_NULL && (bridge_channel->bridge->technology->capabilities & AST_BRIDGE_CAPABILITY_THREAD)) {
 			bridge_channel->bridge->stop = 0;
@@ -1006,7 +1006,7 @@ static enum ast_bridge_channel_state bridge_channel_join(struct ast_bridge_chann
 		}
 	}
 
-	bridge_channel->chan->bridge = NULL;
+	ast_channel_internal_bridge_set(bridge_channel->chan, NULL);
 
 	/* See if we need to dissolve the bridge itself if they hung up */
 	if (bridge_channel->state == AST_BRIDGE_CHANNEL_STATE_END) {
diff --git a/main/channel.c b/main/channel.c
index 5fdd9ce9fe..c1431c7ef3 100644
--- a/main/channel.c
+++ b/main/channel.c
@@ -67,6 +67,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/stringfields.h"
 #include "asterisk/global_datastores.h"
 #include "asterisk/data.h"
+#include "asterisk/channel_internal.h"
 
 #ifdef HAVE_EPOLL
 #include <sys/epoll.h>
@@ -928,21 +929,12 @@ __ast_channel_alloc_ap(int needqueue, int state, const char *cid_num, const char
 	struct ast_timer *timer;
 
 	/* If shutting down, don't allocate any new channels */
-	if (shutting_down) {
+	if (ast_shutting_down()) {
 		ast_log(LOG_WARNING, "Channel allocation failed: Refusing due to active shutdown\n");
 		return NULL;
 	}
 
-#if defined(REF_DEBUG)
-	tmp = __ao2_alloc_debug(sizeof(*tmp), ast_channel_destructor,
-		AO2_ALLOC_OPT_LOCK_MUTEX, "", file, line, function, 1);
-#elif defined(__AST_DEBUG_MALLOC)
-	tmp = __ao2_alloc_debug(sizeof(*tmp), ast_channel_destructor,
-		AO2_ALLOC_OPT_LOCK_MUTEX, "", file, line, function, 0);
-#else
-	tmp = ao2_alloc(sizeof(*tmp), ast_channel_destructor);
-#endif
-	if (!tmp) {
+	if (!(tmp = ast_channel_internal_alloc(ast_channel_destructor))) {
 		/* Channel structure allocation failure. */
 		return NULL;
 	}
@@ -999,10 +991,6 @@ __ast_channel_alloc_ap(int needqueue, int state, const char *cid_num, const char
 		ast_channel_timingfd_set(tmp, ast_timer_fd(ast_channel_timer(tmp)));
 	}
 
-	if (needqueue && ast_channel_internal_alertpipe_init(tmp)) {
-		return ast_channel_unref(tmp);
-	}
-
 	/*
 	 * This is the last place the channel constructor can fail.
 	 *
@@ -1010,7 +998,8 @@ __ast_channel_alloc_ap(int needqueue, int state, const char *cid_num, const char
 	 * AST_CEL_CHANNEL_END is not posted if we have not posted the
 	 * AST_CEL_CHANNEL_START yet.
 	 */
-	if ((ast_string_field_init(tmp, 128))) {
+
+	if (needqueue && ast_channel_internal_alertpipe_init(tmp)) {
 		return ast_channel_unref(tmp);
 	}
 
@@ -1132,6 +1121,7 @@ __ast_channel_alloc_ap(int needqueue, int state, const char *cid_num, const char
 			ast_channel_uniqueid(tmp));
 	}
 
+	ast_channel_internal_finalize(tmp);
 	return tmp;
 }
 
@@ -1164,24 +1154,11 @@ struct ast_channel *ast_dummy_channel_alloc(void)
 	struct ast_channel *tmp;
 	struct varshead *headp;
 
-#if defined(REF_DEBUG)
-	tmp = __ao2_alloc_debug(sizeof(*tmp), ast_dummy_channel_destructor,
-		AO2_ALLOC_OPT_LOCK_MUTEX, "dummy channel", file, line, function, 1);
-#elif defined(__AST_DEBUG_MALLOC)
-	tmp = __ao2_alloc_debug(sizeof(*tmp), ast_dummy_channel_destructor,
-		AO2_ALLOC_OPT_LOCK_MUTEX, "dummy channel", file, line, function, 0);
-#else
-	tmp = ao2_alloc(sizeof(*tmp), ast_dummy_channel_destructor);
-#endif
-	if (!tmp) {
+	if (!(tmp = ast_channel_internal_alloc(ast_dummy_channel_destructor))) {
 		/* Dummy channel structure allocation failure. */
 		return NULL;
 	}
 
-	if ((ast_string_field_init(tmp, 128))) {
-		return ast_channel_unref(tmp);
-	}
-
 	headp = ast_channel_varshead(tmp);
 	AST_LIST_HEAD_INIT_NOLOCK(headp);
 
@@ -1196,7 +1173,7 @@ static int __ast_queue_frame(struct ast_channel *chan, struct ast_frame *fin, in
 	unsigned int new_voice_frames = 0;
 	unsigned int queued_frames = 0;
 	unsigned int queued_voice_frames = 0;
-	AST_LIST_HEAD_NOLOCK(, ast_frame) frames;
+	AST_LIST_HEAD_NOLOCK(,ast_frame) frames;
 
 	ast_channel_lock(chan);
 
@@ -1296,8 +1273,8 @@ static int __ast_queue_frame(struct ast_channel *chan, struct ast_frame *fin, in
 		}
 	} else if (ast_channel_timingfd(chan) > -1) {
 		ast_timer_enable_continuous(ast_channel_timer(chan));
-	} else if (ast_test_flag(chan, AST_FLAG_BLOCKING)) {
-		pthread_kill(chan->blocker, SIGURG);
+	} else if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_BLOCKING)) {
+		pthread_kill(ast_channel_blocker(chan), SIGURG);
 	}
 
 	ast_channel_unlock(chan);
@@ -1380,8 +1357,8 @@ int ast_channel_defer_dtmf(struct ast_channel *chan)
 	int pre = 0;
 
 	if (chan) {
-		pre = ast_test_flag(chan, AST_FLAG_DEFER_DTMF);
-		ast_set_flag(chan, AST_FLAG_DEFER_DTMF);
+		pre = ast_test_flag(ast_channel_flags(chan), AST_FLAG_DEFER_DTMF);
+		ast_set_flag(ast_channel_flags(chan), AST_FLAG_DEFER_DTMF);
 	}
 	return pre;
 }
@@ -1390,7 +1367,7 @@ int ast_channel_defer_dtmf(struct ast_channel *chan)
 void ast_channel_undefer_dtmf(struct ast_channel *chan)
 {
 	if (chan)
-		ast_clear_flag(chan, AST_FLAG_DEFER_DTMF);
+		ast_clear_flag(ast_channel_flags(chan), AST_FLAG_DEFER_DTMF);
 }
 
 struct ast_channel *ast_channel_callback(ao2_callback_data_fn *cb_fn, void *arg,
@@ -2172,8 +2149,7 @@ static void ast_channel_destructor(void *obj)
 	struct ast_datastore *datastore;
 	char device_name[AST_CHANNEL_NAME];
 
-	if (ast_channel_name(chan)) {
-		/* The string fields were initialized. */
+	if (ast_channel_internal_is_finalized(chan)) {
 		ast_cel_report_event(chan, AST_CEL_CHANNEL_END, NULL, NULL, NULL);
 		ast_cel_check_retire_linkedid(chan);
 	}
@@ -2199,10 +2175,9 @@ static void ast_channel_destructor(void *obj)
 		ast_sched_context_destroy(ast_channel_sched(chan));
 	}
 
-	if (ast_channel_name(chan)) {
+	if (ast_channel_internal_is_finalized(chan)) {
 		char *dashptr;
 
-		/* The string fields were initialized. */
 		ast_copy_string(device_name, ast_channel_name(chan), sizeof(device_name));
 		if ((dashptr = strrchr(device_name, '-'))) {
 			*dashptr = '\0';
@@ -2268,7 +2243,7 @@ static void ast_channel_destructor(void *obj)
 		ast_channel_zone_set(chan, ast_tone_zone_unref(ast_channel_zone(chan)));
 	}
 
-	ast_string_field_free_memory(chan);
+	ast_channel_internal_cleanup(chan);
 
 	if (device_name[0]) {
 		/*
@@ -2308,7 +2283,7 @@ static void ast_dummy_channel_destructor(void *obj)
 		ast_channel_cdr_set(chan, NULL);
 	}
 
-	ast_string_field_free_memory(chan);
+	ast_channel_internal_cleanup(chan);
 }
 
 struct ast_datastore *ast_channel_datastore_alloc(const struct ast_datastore_info *info, const char *uid)
@@ -2490,8 +2465,8 @@ int ast_softhangup_nolock(struct ast_channel *chan, int cause)
 	ast_channel_softhangup_internal_flag_add(chan, cause);
 	ast_queue_frame(chan, &ast_null_frame);
 	/* Interrupt any poll call or such */
-	if (ast_test_flag(chan, AST_FLAG_BLOCKING))
-		pthread_kill(chan->blocker, SIGURG);
+	if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_BLOCKING))
+		pthread_kill(ast_channel_blocker(chan), SIGURG);
 	return 0;
 }
 
@@ -2597,14 +2572,14 @@ int ast_hangup(struct ast_channel *chan)
 		 * Mark it as a zombie already so ast_do_masquerade() will know
 		 * to free it later.
 		 */
-		ast_set_flag(chan, AST_FLAG_ZOMBIE);
+		ast_set_flag(ast_channel_flags(chan), AST_FLAG_ZOMBIE);
 		destroy_hooks(chan);
 		ast_channel_unlock(chan);
 		return 0;
 	}
 
-	if (!(was_zombie = ast_test_flag(chan, AST_FLAG_ZOMBIE))) {
-		ast_set_flag(chan, AST_FLAG_ZOMBIE);
+	if (!(was_zombie = ast_test_flag(ast_channel_flags(chan), AST_FLAG_ZOMBIE))) {
+		ast_set_flag(ast_channel_flags(chan), AST_FLAG_ZOMBIE);
 	}
 
 	ast_channel_unlock(chan);
@@ -2640,11 +2615,11 @@ int ast_hangup(struct ast_channel *chan)
 	snprintf(extra_str, sizeof(extra_str), "%d,%s,%s", ast_channel_hangupcause(chan), ast_channel_hangupsource(chan), S_OR(pbx_builtin_getvar_helper(chan, "DIALSTATUS"), ""));
 	ast_cel_report_event(chan, AST_CEL_HANGUP, NULL, extra_str, NULL);
 
-	if (ast_test_flag(chan, AST_FLAG_BLOCKING)) {
+	if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_BLOCKING)) {
 		ast_log(LOG_WARNING, "Hard hangup called by thread %ld on %s, while fd "
 			"is blocked by thread %ld in procedure %s!  Expect a failure\n",
-			(long) pthread_self(), ast_channel_name(chan), (long)chan->blocker, ast_channel_blockproc(chan));
-		ast_assert(ast_test_flag(chan, AST_FLAG_BLOCKING) == 0);
+			(long) pthread_self(), ast_channel_name(chan), (long)ast_channel_blocker(chan), ast_channel_blockproc(chan));
+		ast_assert(ast_test_flag(ast_channel_flags(chan), AST_FLAG_BLOCKING) == 0);
 	}
 	if (!was_zombie) {
 		ast_debug(1, "Hanging up channel '%s'\n", ast_channel_name(chan));
@@ -2700,13 +2675,13 @@ int ast_raw_answer(struct ast_channel *chan, int cdr_answer)
 	ast_channel_lock(chan);
 
 	/* You can't answer an outbound call */
-	if (ast_test_flag(chan, AST_FLAG_OUTGOING)) {
+	if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_OUTGOING)) {
 		ast_channel_unlock(chan);
 		return 0;
 	}
 
 	/* Stop if we're a zombie or need a soft hangup */
-	if (ast_test_flag(chan, AST_FLAG_ZOMBIE) || ast_check_hangup(chan)) {
+	if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_ZOMBIE) || ast_check_hangup(chan)) {
 		ast_channel_unlock(chan);
 		return -1;
 	}
@@ -2860,7 +2835,7 @@ void ast_deactivate_generator(struct ast_channel *chan)
 		ast_channel_generatordata_set(chan, NULL);
 		ast_channel_generator_set(chan, NULL);
 		ast_channel_set_fd(chan, AST_GENERATOR_FD, -1);
-		ast_clear_flag(chan, AST_FLAG_WRITE_INT);
+		ast_clear_flag(ast_channel_flags(chan), AST_FLAG_WRITE_INT);
 		ast_settimeout(chan, 0, NULL, NULL);
 	}
 	ast_channel_unlock(chan);
@@ -3044,7 +3019,7 @@ struct ast_channel *ast_waitfor_nandfds(struct ast_channel **c, int n, int *fds,
 		res = ast_poll(pfds, max, rms);
 	}
 	for (x = 0; x < n; x++)
-		ast_clear_flag(c[x], AST_FLAG_BLOCKING);
+		ast_clear_flag(ast_channel_flags(c[x]), AST_FLAG_BLOCKING);
 	if (res < 0) { /* Simulate a timeout if we were interrupted */
 		if (errno != EINTR)
 			*ms = -1;
@@ -3076,9 +3051,9 @@ struct ast_channel *ast_waitfor_nandfds(struct ast_channel **c, int n, int *fds,
 		if (fdmap[x].chan >= 0) {	/* this is a channel */
 			winner = c[fdmap[x].chan];	/* override previous winners */
 			if (res & POLLPRI)
-				ast_set_flag(winner, AST_FLAG_EXCEPTION);
+				ast_set_flag(ast_channel_flags(winner), AST_FLAG_EXCEPTION);
 			else
-				ast_clear_flag(winner, AST_FLAG_EXCEPTION);
+				ast_clear_flag(ast_channel_flags(winner), AST_FLAG_EXCEPTION);
 			ast_channel_fdno_set(winner, fdmap[x].fdno);
 		} else {			/* this is an fd */
 			if (outfd)
@@ -3140,7 +3115,7 @@ static struct ast_channel *ast_waitfor_nandfds_simple(struct ast_channel *chan,
 	res = epoll_wait(ast_channel_epfd(chan), ev, 1, rms);
 
 	/* Stop blocking */
-	ast_clear_flag(chan, AST_FLAG_BLOCKING);
+	ast_clear_flag(ast_channel_flags(chan), AST_FLAG_BLOCKING);
 
 	/* Simulate a timeout if we were interrupted */
 	if (res < 0) {
@@ -3167,9 +3142,9 @@ static struct ast_channel *ast_waitfor_nandfds_simple(struct ast_channel *chan,
 	aed = ev[0].data.ptr;
 	ast_channel_fdno_set(chan, aed->which);
 	if (ev[0].events & EPOLLPRI)
-		ast_set_flag(chan, AST_FLAG_EXCEPTION);
+		ast_set_flag(ast_channel_flags(chan), AST_FLAG_EXCEPTION);
 	else
-		ast_clear_flag(chan, AST_FLAG_EXCEPTION);
+		ast_clear_flag(ast_channel_flags(chan), AST_FLAG_EXCEPTION);
 
 	if (*ms > 0) {
 		*ms -= ast_tvdiff_ms(ast_tvnow(), start);
@@ -3225,7 +3200,7 @@ static struct ast_channel *ast_waitfor_nandfds_complex(struct ast_channel **c, i
 	res = epoll_wait(ast_channel_epfd(c[0]), ev, 25, rms);
 
 	for (i = 0; i < n; i++)
-		ast_clear_flag(c[i], AST_FLAG_BLOCKING);
+		ast_clear_flag(ast_channel_flags(c[i]), AST_FLAG_BLOCKING);
 
 	if (res < 0) {
 		if (errno != EINTR)
@@ -3257,9 +3232,9 @@ static struct ast_channel *ast_waitfor_nandfds_complex(struct ast_channel **c, i
 
 		winner = aed->chan;
 		if (ev[i].events & EPOLLPRI)
-			ast_set_flag(winner, AST_FLAG_EXCEPTION);
+			ast_set_flag(ast_channel_flags(winner), AST_FLAG_EXCEPTION);
 		else
-			ast_clear_flag(winner, AST_FLAG_EXCEPTION);
+			ast_clear_flag(ast_channel_flags(winner), AST_FLAG_EXCEPTION);
 		ast_channel_fdno_set(winner, aed->which);
 	}
 
@@ -3337,7 +3312,7 @@ int ast_settimeout(struct ast_channel *c, unsigned int rate, int (*func)(const v
 
 	res = ast_timer_set_rate(ast_channel_timer(c), real_rate);
 
-	c->timingfunc = func;
+	ast_channel_timingfunc_set(c, func);
 	ast_channel_timingdata_set(c, data);
 
 	if (func == NULL && rate == 0 && ast_channel_fdno(c) == AST_TIMING_FD) {
@@ -3358,11 +3333,11 @@ int ast_settimeout(struct ast_channel *c, unsigned int rate, int (*func)(const v
 int ast_waitfordigit_full(struct ast_channel *c, int ms, int audiofd, int cmdfd)
 {
 	/* Stop if we're a zombie or need a soft hangup */
-	if (ast_test_flag(c, AST_FLAG_ZOMBIE) || ast_check_hangup(c))
+	if (ast_test_flag(ast_channel_flags(c), AST_FLAG_ZOMBIE) || ast_check_hangup(c))
 		return -1;
 
 	/* Only look for the end of DTMF, don't bother with the beginning and don't emulate things */
-	ast_set_flag(c, AST_FLAG_END_DTMF_ONLY);
+	ast_set_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
 
 	/* Wait for a digit, no more than ms milliseconds total. */
 	
@@ -3377,12 +3352,12 @@ int ast_waitfordigit_full(struct ast_channel *c, int ms, int audiofd, int cmdfd)
 			if (errno == 0 || errno == EINTR)
 				continue;
 			ast_log(LOG_WARNING, "Wait failed (%s)\n", strerror(errno));
-			ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
+			ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
 			return -1;
 		} else if (outfd > -1) {
 			/* The FD we were watching has something waiting */
 			ast_log(LOG_WARNING, "The FD we were waiting for has something waiting. Waitfordigit returning numeric 1\n");
-			ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
+			ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
 			return 1;
 		} else if (rchan) {
 			int res;
@@ -3396,13 +3371,13 @@ int ast_waitfordigit_full(struct ast_channel *c, int ms, int audiofd, int cmdfd)
 			case AST_FRAME_DTMF_END:
 				res = f->subclass.integer;
 				ast_frfree(f);
-				ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
+				ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
 				return res;
 			case AST_FRAME_CONTROL:
 				switch (f->subclass.integer) {
 				case AST_CONTROL_HANGUP:
 					ast_frfree(f);
-					ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
+					ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
 					return -1;
 				case AST_CONTROL_RINGING:
 				case AST_CONTROL_ANSWER:
@@ -3436,7 +3411,7 @@ int ast_waitfordigit_full(struct ast_channel *c, int ms, int audiofd, int cmdfd)
 		}
 	}
 
-	ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
+	ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
 
 	return 0; /* Time is up */
 }
@@ -3462,7 +3437,7 @@ static void ast_read_generator_actions(struct ast_channel *chan, struct ast_fram
 		int res;
 		int samples;
 
-		if (chan->timingfunc) {
+		if (ast_channel_timingfunc(chan)) {
 			ast_debug(1, "Generator got voice, switching to phase locked mode\n");
 			ast_settimeout(chan, 0, NULL, NULL);
 		}
@@ -3495,7 +3470,7 @@ static void ast_read_generator_actions(struct ast_channel *chan, struct ast_fram
 		}
 
 	} else if (f->frametype == AST_FRAME_CNG) {
-		if (ast_channel_generator(chan) && !chan->timingfunc && (ast_channel_timingfd(chan) > -1)) {
+		if (ast_channel_generator(chan) && !ast_channel_timingfunc(chan) && (ast_channel_timingfd(chan) > -1)) {
 			ast_debug(1, "Generator got CNG, switching to timed mode\n");
 			ast_settimeout(chan, 50, generator_force, chan);
 		}
@@ -3522,7 +3497,7 @@ static inline void queue_dtmf_readq(struct ast_channel *chan, struct ast_frame *
  */
 static inline int should_skip_dtmf(struct ast_channel *chan)
 {
-	if (ast_test_flag(chan, AST_FLAG_DEFER_DTMF | AST_FLAG_EMULATE_DTMF)) {
+	if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_DEFER_DTMF | AST_FLAG_EMULATE_DTMF)) {
 		/* We're in the middle of emulating a digit, or DTMF has been
 		 * explicitly deferred.  Skip this digit, then. */
 		return 1;
@@ -3582,7 +3557,7 @@ static struct ast_frame *__ast_read(struct ast_channel *chan, int dropaudio)
 	ast_channel_lock(chan);
 
 	/* Stop if we're a zombie or need a soft hangup */
-	if (ast_test_flag(chan, AST_FLAG_ZOMBIE) || ast_check_hangup(chan)) {
+	if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_ZOMBIE) || ast_check_hangup(chan)) {
 		if (ast_channel_generator(chan))
 			ast_deactivate_generator(chan);
 
@@ -3627,7 +3602,7 @@ static struct ast_frame *__ast_read(struct ast_channel *chan, int dropaudio)
 	if (ast_channel_timingfd(chan) > -1 && ast_channel_fdno(chan) == AST_TIMING_FD) {
 		enum ast_timer_event res;
 
-		ast_clear_flag(chan, AST_FLAG_EXCEPTION);
+		ast_clear_flag(ast_channel_flags(chan), AST_FLAG_EXCEPTION);
 
 		res = ast_timer_get_event(ast_channel_timer(chan));
 
@@ -3635,9 +3610,9 @@ static struct ast_frame *__ast_read(struct ast_channel *chan, int dropaudio)
 		case AST_TIMING_EVENT_EXPIRED:
 			ast_timer_ack(ast_channel_timer(chan), 1);
 
-			if (chan->timingfunc) {
+			if (ast_channel_timingfunc(chan)) {
 				/* save a copy of func/data before unlocking the channel */
-				int (*func)(const void *) = chan->timingfunc;
+				ast_timing_func_t func = ast_channel_timingfunc(chan);
 				void *data = ast_channel_timingdata(chan);
 				ast_channel_fdno_set(chan, -1);
 				ast_channel_unlock(chan);
@@ -3671,7 +3646,7 @@ static struct ast_frame *__ast_read(struct ast_channel *chan, int dropaudio)
 		ast_channel_fdno_set(chan, -1);
 		goto done;
 	} else if (ast_channel_fd_isset(chan, AST_JITTERBUFFER_FD) && ast_channel_fdno(chan) == AST_JITTERBUFFER_FD) {
-		ast_clear_flag(chan, AST_FLAG_EXCEPTION);
+		ast_clear_flag(ast_channel_flags(chan), AST_FLAG_EXCEPTION);
 	}
 
 	/* Read and ignore anything on the alertpipe, but read only
@@ -3722,8 +3697,8 @@ static struct ast_frame *__ast_read(struct ast_channel *chan, int dropaudio)
 			}
 		}
 	} else {
-		chan->blocker = pthread_self();
-		if (ast_test_flag(chan, AST_FLAG_EXCEPTION)) {
+		ast_channel_blocker_set(chan, pthread_self());
+		if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_EXCEPTION)) {
 			if (ast_channel_tech(chan)->exception)
 				f = ast_channel_tech(chan)->exception(chan);
 			else {
@@ -3731,7 +3706,7 @@ static struct ast_frame *__ast_read(struct ast_channel *chan, int dropaudio)
 				f = &ast_null_frame;
 			}
 			/* Clear the exception flag */
-			ast_clear_flag(chan, AST_FLAG_EXCEPTION);
+			ast_clear_flag(ast_channel_flags(chan), AST_FLAG_EXCEPTION);
 		} else if (ast_channel_tech(chan) && ast_channel_tech(chan)->read)
 			f = ast_channel_tech(chan)->read(chan);
 		else
@@ -3765,7 +3740,7 @@ static struct ast_frame *__ast_read(struct ast_channel *chan, int dropaudio)
 		switch (f->frametype) {
 		case AST_FRAME_CONTROL:
 			if (f->subclass.integer == AST_CONTROL_ANSWER) {
-				if (!ast_test_flag(chan, AST_FLAG_OUTGOING)) {
+				if (!ast_test_flag(ast_channel_flags(chan), AST_FLAG_OUTGOING)) {
 					ast_debug(1, "Ignoring answer on an inbound call!\n");
 					ast_frfree(f);
 					f = &ast_null_frame;
@@ -3807,11 +3782,11 @@ static struct ast_frame *__ast_read(struct ast_channel *chan, int dropaudio)
 			send_dtmf_event(chan, "Received", f->subclass.integer, "No", "Yes");
 			ast_log(LOG_DTMF, "DTMF end '%c' received on %s, duration %ld ms\n", f->subclass.integer, ast_channel_name(chan), f->len);
 			/* Queue it up if DTMF is deferred, or if DTMF emulation is forced. */
-			if (ast_test_flag(chan, AST_FLAG_DEFER_DTMF) || ast_test_flag(chan, AST_FLAG_EMULATE_DTMF)) {
+			if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_DEFER_DTMF) || ast_test_flag(ast_channel_flags(chan), AST_FLAG_EMULATE_DTMF)) {
 				queue_dtmf_readq(chan, f);
 				ast_frfree(f);
 				f = &ast_null_frame;
-			} else if (!ast_test_flag(chan, AST_FLAG_IN_DTMF | AST_FLAG_END_DTMF_ONLY)) {
+			} else if (!ast_test_flag(ast_channel_flags(chan), AST_FLAG_IN_DTMF | AST_FLAG_END_DTMF_ONLY)) {
 				if (!ast_tvzero(*ast_channel_dtmf_tv(chan)) && 
 				    ast_tvdiff_ms(ast_tvnow(), *ast_channel_dtmf_tv(chan)) < AST_MIN_DTMF_GAP) {
 					/* If it hasn't been long enough, defer this digit */
@@ -3822,7 +3797,7 @@ static struct ast_frame *__ast_read(struct ast_channel *chan, int dropaudio)
 					/* There was no begin, turn this into a begin and send the end later */
 					struct timeval tv = ast_tvnow();
 					f->frametype = AST_FRAME_DTMF_BEGIN;
-					ast_set_flag(chan, AST_FLAG_EMULATE_DTMF);
+					ast_set_flag(ast_channel_flags(chan), AST_FLAG_EMULATE_DTMF);
 					ast_channel_dtmf_digit_to_emulate_set(chan, f->subclass.integer);
 					ast_channel_dtmf_tv_set(chan, &tv);
 					if (f->len) {
@@ -3845,9 +3820,9 @@ static struct ast_frame *__ast_read(struct ast_channel *chan, int dropaudio)
 				}
 			} else {
 				struct timeval now = ast_tvnow();
-				if (ast_test_flag(chan, AST_FLAG_IN_DTMF)) {
+				if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_IN_DTMF)) {
 					ast_log(LOG_DTMF, "DTMF end accepted with begin '%c' on %s\n", f->subclass.integer, ast_channel_name(chan));
-					ast_clear_flag(chan, AST_FLAG_IN_DTMF);
+					ast_clear_flag(ast_channel_flags(chan), AST_FLAG_IN_DTMF);
 					if (!f->len)
 						f->len = ast_tvdiff_ms(now, *ast_channel_dtmf_tv(chan));
 
@@ -3867,9 +3842,9 @@ static struct ast_frame *__ast_read(struct ast_channel *chan, int dropaudio)
 					ast_log(LOG_DTMF, "DTMF end accepted without begin '%c' on %s\n", f->subclass.integer, ast_channel_name(chan));
 					f->len = AST_MIN_DTMF_DURATION;
 				}
-				if (f->len < AST_MIN_DTMF_DURATION && !ast_test_flag(chan, AST_FLAG_END_DTMF_ONLY)) {
+				if (f->len < AST_MIN_DTMF_DURATION && !ast_test_flag(ast_channel_flags(chan), AST_FLAG_END_DTMF_ONLY)) {
 					ast_log(LOG_DTMF, "DTMF end '%c' has duration %ld but want minimum %d, emulating on %s\n", f->subclass.integer, f->len, AST_MIN_DTMF_DURATION, ast_channel_name(chan));
-					ast_set_flag(chan, AST_FLAG_EMULATE_DTMF);
+					ast_set_flag(ast_channel_flags(chan), AST_FLAG_EMULATE_DTMF);
 					ast_channel_dtmf_digit_to_emulate_set(chan, f->subclass.integer);
 					ast_channel_emulate_dtmf_duration_set(chan, AST_MIN_DTMF_DURATION - f->len);
 					ast_frfree(f);
@@ -3892,7 +3867,7 @@ static struct ast_frame *__ast_read(struct ast_channel *chan, int dropaudio)
 		case AST_FRAME_DTMF_BEGIN:
 			send_dtmf_event(chan, "Received", f->subclass.integer, "Yes", "No");
 			ast_log(LOG_DTMF, "DTMF begin '%c' received on %s\n", f->subclass.integer, ast_channel_name(chan));
-			if ( ast_test_flag(chan, AST_FLAG_DEFER_DTMF | AST_FLAG_END_DTMF_ONLY | AST_FLAG_EMULATE_DTMF) || 
+			if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_DEFER_DTMF | AST_FLAG_END_DTMF_ONLY | AST_FLAG_EMULATE_DTMF) || 
 			    (!ast_tvzero(*ast_channel_dtmf_tv(chan)) && 
 			      ast_tvdiff_ms(ast_tvnow(), *ast_channel_dtmf_tv(chan)) < AST_MIN_DTMF_GAP) ) {
 				ast_log(LOG_DTMF, "DTMF begin ignored '%c' on %s\n", f->subclass.integer, ast_channel_name(chan));
@@ -3900,7 +3875,7 @@ static struct ast_frame *__ast_read(struct ast_channel *chan, int dropaudio)
 				f = &ast_null_frame;
 			} else {
 				struct timeval now = ast_tvnow();
-				ast_set_flag(chan, AST_FLAG_IN_DTMF);
+				ast_set_flag(ast_channel_flags(chan), AST_FLAG_IN_DTMF);
 				ast_channel_dtmf_tv_set(chan, &now);
 				ast_log(LOG_DTMF, "DTMF begin passthrough '%c' on %s\n", f->subclass.integer, ast_channel_name(chan));
 			}
@@ -3910,10 +3885,10 @@ static struct ast_frame *__ast_read(struct ast_channel *chan, int dropaudio)
 			 * is reached , because we want to make sure we pass at least one
 			 * voice frame through before starting the next digit, to ensure a gap
 			 * between DTMF digits. */
-			if (ast_test_flag(chan, AST_FLAG_EMULATE_DTMF)) {
+			if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_EMULATE_DTMF)) {
 				struct timeval now = ast_tvnow();
 				if (!ast_channel_emulate_dtmf_duration(chan)) {
-					ast_clear_flag(chan, AST_FLAG_EMULATE_DTMF);
+					ast_clear_flag(ast_channel_flags(chan), AST_FLAG_EMULATE_DTMF);
 					ast_channel_dtmf_digit_to_emulate_set(chan, 0);
 				} else if (ast_tvdiff_ms(now, *ast_channel_dtmf_tv(chan)) >= ast_channel_emulate_dtmf_duration(chan)) {
 					ast_channel_emulate_dtmf_duration_set(chan, 0);
@@ -3923,7 +3898,7 @@ static struct ast_frame *__ast_read(struct ast_channel *chan, int dropaudio)
 					f->subclass.integer = ast_channel_dtmf_digit_to_emulate(chan);
 					f->len = ast_tvdiff_ms(now, *ast_channel_dtmf_tv(chan));
 					ast_channel_dtmf_tv_set(chan, &now);
-					ast_clear_flag(chan, AST_FLAG_EMULATE_DTMF);
+					ast_clear_flag(ast_channel_flags(chan), AST_FLAG_EMULATE_DTMF);
 					ast_channel_dtmf_digit_to_emulate_set(chan, 0);
 					ast_log(LOG_DTMF, "DTMF end emulation of '%c' queued on %s\n", f->subclass.integer, ast_channel_name(chan));
 					if (ast_channel_audiohooks(chan)) {
@@ -3941,19 +3916,19 @@ static struct ast_frame *__ast_read(struct ast_channel *chan, int dropaudio)
 			 * is reached , because we want to make sure we pass at least one
 			 * voice frame through before starting the next digit, to ensure a gap
 			 * between DTMF digits. */
-			if (ast_test_flag(chan, AST_FLAG_EMULATE_DTMF) && !ast_channel_emulate_dtmf_duration(chan)) {
-				ast_clear_flag(chan, AST_FLAG_EMULATE_DTMF);
+			if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_EMULATE_DTMF) && !ast_channel_emulate_dtmf_duration(chan)) {
+				ast_clear_flag(ast_channel_flags(chan), AST_FLAG_EMULATE_DTMF);
 				ast_channel_dtmf_digit_to_emulate_set(chan, 0);
 			}
 
-			if (dropaudio || ast_test_flag(chan, AST_FLAG_IN_DTMF)) {
+			if (dropaudio || ast_test_flag(ast_channel_flags(chan), AST_FLAG_IN_DTMF)) {
 				if (dropaudio)
 					ast_read_generator_actions(chan, f);
 				ast_frfree(f);
 				f = &ast_null_frame;
 			}
 
-			if (ast_test_flag(chan, AST_FLAG_EMULATE_DTMF) && !ast_test_flag(chan, AST_FLAG_IN_DTMF)) {
+			if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_EMULATE_DTMF) && !ast_test_flag(ast_channel_flags(chan), AST_FLAG_IN_DTMF)) {
 				struct timeval now = ast_tvnow();
 				if (ast_tvdiff_ms(now, *ast_channel_dtmf_tv(chan)) >= ast_channel_emulate_dtmf_duration(chan)) {
 					ast_channel_emulate_dtmf_duration_set(chan, 0);
@@ -4162,7 +4137,7 @@ int ast_indicate_data(struct ast_channel *chan, int _condition,
 	ast_channel_lock(chan);
 
 	/* Don't bother if the channel is about to go away, anyway. */
-	if (ast_test_flag(chan, AST_FLAG_ZOMBIE) || ast_check_hangup(chan)) {
+	if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_ZOMBIE) || ast_check_hangup(chan)) {
 		res = -1;
 		goto indicate_cleanup;
 	}
@@ -4388,7 +4363,7 @@ int ast_sendtext(struct ast_channel *chan, const char *text)
 
 	ast_channel_lock(chan);
 	/* Stop if we're a zombie or need a soft hangup */
-	if (ast_test_flag(chan, AST_FLAG_ZOMBIE) || ast_check_hangup(chan)) {
+	if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_ZOMBIE) || ast_check_hangup(chan)) {
 		ast_channel_unlock(chan);
 		return -1;
 	}
@@ -4415,7 +4390,7 @@ int ast_sendtext(struct ast_channel *chan, const char *text)
 	} else if (ast_channel_tech(chan)->send_text) {
 		res = ast_channel_tech(chan)->send_text(chan, text);
 	}
-	ast_clear_flag(chan, AST_FLAG_BLOCKING);
+	ast_clear_flag(ast_channel_flags(chan), AST_FLAG_BLOCKING);
 	ast_channel_unlock(chan);
 	return res;
 }
@@ -4636,7 +4611,7 @@ int ast_write(struct ast_channel *chan, struct ast_frame *fr)
 		usleep(1);
 	}
 	/* Stop if we're a zombie or need a soft hangup */
-	if (ast_test_flag(chan, AST_FLAG_ZOMBIE) || ast_check_hangup(chan))
+	if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_ZOMBIE) || ast_check_hangup(chan))
 		goto done;
 
 	/* Handle any pending masquerades */
@@ -4661,14 +4636,14 @@ int ast_write(struct ast_channel *chan, struct ast_frame *fr)
 	}
 
 	if (ast_channel_generatordata(chan) && (!fr->src || strcasecmp(fr->src, "ast_prod"))) {
-		if (ast_test_flag(chan, AST_FLAG_WRITE_INT)) {
+		if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_WRITE_INT)) {
 				ast_deactivate_generator(chan);
 		} else {
 			if (fr->frametype == AST_FRAME_DTMF_END) {
 				/* There is a generator running while we're in the middle of a digit.
 				 * It's probably inband DTMF, so go ahead and pass it so it can
 				 * stop the generator */
-				ast_clear_flag(chan, AST_FLAG_BLOCKING);
+				ast_clear_flag(ast_channel_flags(chan), AST_FLAG_BLOCKING);
 				ast_channel_unlock(chan);
 				res = ast_senddigit_end(chan, fr->subclass.integer, fr->len);
 				ast_channel_lock(chan);
@@ -4699,7 +4674,7 @@ int ast_write(struct ast_channel *chan, struct ast_frame *fr)
 				f = fr;
 		}
 		send_dtmf_event(chan, "Sent", fr->subclass.integer, "Yes", "No");
-		ast_clear_flag(chan, AST_FLAG_BLOCKING);
+		ast_clear_flag(ast_channel_flags(chan), AST_FLAG_BLOCKING);
 		ast_channel_unlock(chan);
 		res = ast_senddigit_begin(chan, fr->subclass.integer);
 		ast_channel_lock(chan);
@@ -4715,7 +4690,7 @@ int ast_write(struct ast_channel *chan, struct ast_frame *fr)
 			}
 		}
 		send_dtmf_event(chan, "Sent", fr->subclass.integer, "No", "Yes");
-		ast_clear_flag(chan, AST_FLAG_BLOCKING);
+		ast_clear_flag(ast_channel_flags(chan), AST_FLAG_BLOCKING);
 		ast_channel_unlock(chan);
 		res = ast_senddigit_end(chan, fr->subclass.integer, fr->len);
 		ast_channel_lock(chan);
@@ -4908,7 +4883,7 @@ int ast_write(struct ast_channel *chan, struct ast_frame *fr)
 
 	if (f && f != fr)
 		ast_frfree(f);
-	ast_clear_flag(chan, AST_FLAG_BLOCKING);
+	ast_clear_flag(ast_channel_flags(chan), AST_FLAG_BLOCKING);
 
 	/* Consider a write failure to force a soft hangup */
 	if (res < 0) {
@@ -5208,7 +5183,7 @@ static void handle_cause(int cause, int *outstate)
  */
 static void call_forward_inherit(struct ast_channel *new_chan, struct ast_channel *parent, struct ast_channel *orig)
 {
-	if (!ast_test_flag(parent, AST_FLAG_ZOMBIE) && !ast_check_hangup(parent)) {
+	if (!ast_test_flag(ast_channel_flags(parent), AST_FLAG_ZOMBIE) && !ast_check_hangup(parent)) {
 		struct ast_party_redirecting redirecting;
 
 		/*
@@ -5633,13 +5608,13 @@ int ast_call(struct ast_channel *chan, const char *addr, int timeout)
 	int res = -1;
 	/* Stop if we're a zombie or need a soft hangup */
 	ast_channel_lock(chan);
-	if (!ast_test_flag(chan, AST_FLAG_ZOMBIE) && !ast_check_hangup(chan)) {
+	if (!ast_test_flag(ast_channel_flags(chan), AST_FLAG_ZOMBIE) && !ast_check_hangup(chan)) {
 		if (ast_channel_cdr(chan)) {
 			ast_set_flag(ast_channel_cdr(chan), AST_CDR_FLAG_DIALED);
 		}
 		if (ast_channel_tech(chan)->call)
 			res = ast_channel_tech(chan)->call(chan, addr, timeout);
-		ast_set_flag(chan, AST_FLAG_OUTGOING);
+		ast_set_flag(ast_channel_flags(chan), AST_FLAG_OUTGOING);
 	}
 	ast_channel_unlock(chan);
 	return res;
@@ -5658,7 +5633,7 @@ int ast_transfer(struct ast_channel *chan, char *dest)
 
 	/* Stop if we're a zombie or need a soft hangup */
 	ast_channel_lock(chan);
-	if (!ast_test_flag(chan, AST_FLAG_ZOMBIE) && !ast_check_hangup(chan)) {
+	if (!ast_test_flag(ast_channel_flags(chan), AST_FLAG_ZOMBIE) && !ast_check_hangup(chan)) {
 		if (ast_channel_tech(chan)->transfer) {
 			res = ast_channel_tech(chan)->transfer(chan, dest);
 			if (!res)
@@ -5714,7 +5689,7 @@ int ast_readstring_full(struct ast_channel *c, char *s, int len, int timeout, in
 	struct ast_silence_generator *silgen = NULL;
 
 	/* Stop if we're a zombie or need a soft hangup */
-	if (ast_test_flag(c, AST_FLAG_ZOMBIE) || ast_check_hangup(c))
+	if (ast_test_flag(ast_channel_flags(c), AST_FLAG_ZOMBIE) || ast_check_hangup(c))
 		return -1;
 	if (!len)
 		return -1;
@@ -5870,8 +5845,8 @@ static int __ast_channel_masquerade(struct ast_channel *original, struct ast_cha
 
 		ast_channel_lock_both(original, clonechan);
 
-		if (ast_test_flag(original, AST_FLAG_ZOMBIE)
-			|| ast_test_flag(clonechan, AST_FLAG_ZOMBIE)) {
+		if (ast_test_flag(ast_channel_flags(original), AST_FLAG_ZOMBIE)
+			|| ast_test_flag(ast_channel_flags(clonechan), AST_FLAG_ZOMBIE)) {
 			/* Zombies! Run! */
 			ast_log(LOG_WARNING,
 				"Can't setup masquerade. One or both channels is dead. (%s <-- %s)\n",
@@ -5886,15 +5861,15 @@ static int __ast_channel_masquerade(struct ast_channel *original, struct ast_cha
 		 * (i.e. chan_agent) and if so, we don't really want to
 		 * masquerade it, but its proxy
 		 */
-		if (original->_bridge
-			&& (original->_bridge != ast_bridged_channel(original))
-			&& (original->_bridge->_bridge != original)) {
-			final_orig = original->_bridge;
+		if (ast_channel_internal_bridged_channel(original)
+			&& (ast_channel_internal_bridged_channel(original) != ast_bridged_channel(original))
+			&& (ast_channel_internal_bridged_channel(ast_channel_internal_bridged_channel(original)) != original)) {
+			final_orig = ast_channel_internal_bridged_channel(original);
 		}
-		if (clonechan->_bridge
-			&& (clonechan->_bridge != ast_bridged_channel(clonechan))
-			&& (clonechan->_bridge->_bridge != clonechan)) {
-			final_clone = clonechan->_bridge;
+		if (ast_channel_internal_bridged_channel(clonechan)
+			&& (ast_channel_internal_bridged_channel(clonechan) != ast_bridged_channel(clonechan))
+			&& (ast_channel_internal_bridged_channel(ast_channel_internal_bridged_channel(clonechan)) != clonechan)) {
+			final_clone = ast_channel_internal_bridged_channel(clonechan);
 		}
 		if (ast_channel_tech(final_clone)->get_base_channel
 			&& (base = ast_channel_tech(final_clone)->get_base_channel(final_clone))) {
@@ -5927,8 +5902,8 @@ static int __ast_channel_masquerade(struct ast_channel *original, struct ast_cha
 			original = final_orig;
 			clonechan = final_clone;
 
-			if (ast_test_flag(original, AST_FLAG_ZOMBIE)
-				|| ast_test_flag(clonechan, AST_FLAG_ZOMBIE)) {
+			if (ast_test_flag(ast_channel_flags(original), AST_FLAG_ZOMBIE)
+				|| ast_test_flag(ast_channel_flags(clonechan), AST_FLAG_ZOMBIE)) {
 				/* Zombies! Run! */
 				ast_log(LOG_WARNING,
 					"Can't setup masquerade. One or both channels is dead. (%s <-- %s)\n",
@@ -6263,14 +6238,14 @@ void ast_channel_set_linkgroup(struct ast_channel *chan, struct ast_channel *pee
 	linkedid = oldest_linkedid(ast_channel_linkedid(chan), ast_channel_linkedid(peer));
 	linkedid = oldest_linkedid(linkedid, ast_channel_uniqueid(chan));
 	linkedid = oldest_linkedid(linkedid, ast_channel_uniqueid(peer));
-	if (chan->_bridge) {
+	if (ast_channel_internal_bridged_channel(chan)) {
 		bridged = ast_bridged_channel(chan);
 		if (bridged != peer) {
 			linkedid = oldest_linkedid(linkedid, ast_channel_linkedid(bridged));
 			linkedid = oldest_linkedid(linkedid, ast_channel_uniqueid(bridged));
 		}
 	}
-	if (peer->_bridge) {
+	if (ast_channel_internal_bridged_channel(peer)) {
 		bridged = ast_bridged_channel(peer);
 		if (bridged != chan) {
 			linkedid = oldest_linkedid(linkedid, ast_channel_linkedid(bridged));
@@ -6283,13 +6258,13 @@ void ast_channel_set_linkgroup(struct ast_channel *chan, struct ast_channel *pee
 
 	ast_channel_change_linkedid(chan, linkedid);
 	ast_channel_change_linkedid(peer, linkedid);
-	if (chan->_bridge) {
+	if (ast_channel_internal_bridged_channel(chan)) {
 		bridged = ast_bridged_channel(chan);
 		if (bridged != peer) {
 			ast_channel_change_linkedid(bridged, linkedid);
 		}
 	}
-	if (peer->_bridge) {
+	if (ast_channel_internal_bridged_channel(peer)) {
 		bridged = ast_bridged_channel(peer);
 		if (bridged != chan) {
 			ast_channel_change_linkedid(bridged, linkedid);
@@ -6684,7 +6659,7 @@ int ast_do_masquerade(struct ast_channel *original)
 	/* XXX What about blocking, softhangup, blocker, and lock and blockproc? XXX */
 	/* Application and data remain the same */
 	/* Clone exception  becomes real one, as with fdno */
-	ast_set_flag(original, ast_test_flag(clonechan, AST_FLAG_EXCEPTION | AST_FLAG_OUTGOING));
+	ast_set_flag(ast_channel_flags(original), ast_test_flag(ast_channel_flags(clonechan), AST_FLAG_EXCEPTION | AST_FLAG_OUTGOING));
 	ast_channel_fdno_set(original, ast_channel_fdno(clonechan));
 	/* Schedule context remains the same */
 	/* Stream stuff stays the same */
@@ -6732,9 +6707,9 @@ int ast_do_masquerade(struct ast_channel *original)
 
 	/* copy over accuntcode and set peeraccount across the bridge */
 	ast_channel_accountcode_set(original, S_OR(ast_channel_accountcode(clonechan), ""));
-	if (original->_bridge) {
-		/* XXX - should we try to lock original->_bridge here? */
-		ast_channel_peeraccount_set(original->_bridge, S_OR(ast_channel_accountcode(clonechan), ""));
+	if (ast_channel_internal_bridged_channel(original)) {
+		/* XXX - should we try to lock original's bridged channel here? */
+		ast_channel_peeraccount_set(ast_channel_internal_bridged_channel(original), S_OR(ast_channel_accountcode(clonechan), ""));
 		ast_cel_report_event(original, AST_CEL_BRIDGE_UPDATE, NULL, NULL, NULL);
 	}
 
@@ -6769,7 +6744,7 @@ int ast_do_masquerade(struct ast_channel *original)
 	/* Now, at this point, the "clone" channel is totally F'd up.  We mark it as
 	   a zombie so nothing tries to touch it.  If it's already been marked as a
 	   zombie, then free it now (since it already is considered invalid). */
-	if (ast_test_flag(clonechan, AST_FLAG_ZOMBIE)) {
+	if (ast_test_flag(ast_channel_flags(clonechan), AST_FLAG_ZOMBIE)) {
 		ast_debug(1, "Destroying channel clone '%s'\n", ast_channel_name(clonechan));
 		ast_channel_unlock(clonechan);
 		ast_manager_event(clonechan, EVENT_FLAG_CALL, "Hangup",
@@ -6785,13 +6760,13 @@ int ast_do_masquerade(struct ast_channel *original)
 		clonechan = ast_channel_release(clonechan);
 	} else {
 		ast_debug(1, "Released clone lock on '%s'\n", ast_channel_name(clonechan));
-		ast_set_flag(clonechan, AST_FLAG_ZOMBIE);
+		ast_set_flag(ast_channel_flags(clonechan), AST_FLAG_ZOMBIE);
 		ast_queue_frame(clonechan, &ast_null_frame);
 	}
 
 	/* Signal any blocker */
-	if (ast_test_flag(original, AST_FLAG_BLOCKING))
-		pthread_kill(original->blocker, SIGURG);
+	if (ast_test_flag(ast_channel_flags(original), AST_FLAG_BLOCKING))
+		pthread_kill(ast_channel_blocker(original), SIGURG);
 	ast_debug(1, "Done Masquerading %s (%d)\n", ast_channel_name(original), ast_channel_state(original));
 
 	if ((bridged = ast_bridged_channel(original))) {
@@ -6942,7 +6917,7 @@ int ast_setstate(struct ast_channel *chan, enum ast_channel_state state)
 struct ast_channel *ast_bridged_channel(struct ast_channel *chan)
 {
 	struct ast_channel *bridged;
-	bridged = chan->_bridge;
+	bridged = ast_channel_internal_bridged_channel(chan);
 	if (bridged && ast_channel_tech(bridged)->bridged_channel)
 		bridged = ast_channel_tech(bridged)->bridged_channel(chan, bridged);
 	return bridged;
@@ -7086,8 +7061,8 @@ static enum ast_bridge_result ast_generic_bridge(struct ast_channel *c0, struct
 				if (ast_channel_softhangup_internal_flag(c1) & AST_SOFTHANGUP_UNBRIDGE) {
 					ast_channel_clear_softhangup(c1, AST_SOFTHANGUP_UNBRIDGE);
 				}
-				c0->_bridge = c1;
-				c1->_bridge = c0;
+				ast_channel_internal_bridged_channel_set(c0, c1);
+				ast_channel_internal_bridged_channel_set(c1, c0);
 			}
 			continue;
 		}
@@ -7307,20 +7282,20 @@ enum ast_bridge_result ast_channel_bridge(struct ast_channel *c0, struct ast_cha
 
 	*fo = NULL;
 
-	if (c0->_bridge) {
+	if (ast_channel_internal_bridged_channel(c0)) {
 		ast_log(LOG_WARNING, "%s is already in a bridge with %s\n",
-			ast_channel_name(c0), ast_channel_name(c0->_bridge));
+			ast_channel_name(c0), ast_channel_name(ast_channel_internal_bridged_channel(c0)));
 		return -1;
 	}
-	if (c1->_bridge) {
+	if (ast_channel_internal_bridged_channel(c1)) {
 		ast_log(LOG_WARNING, "%s is already in a bridge with %s\n",
-			ast_channel_name(c1), ast_channel_name(c1->_bridge));
+			ast_channel_name(c1), ast_channel_name(ast_channel_internal_bridged_channel(c1)));
 		return -1;
 	}
 	
 	/* Stop if we're a zombie or need a soft hangup */
-	if (ast_test_flag(c0, AST_FLAG_ZOMBIE) || ast_check_hangup_locked(c0) ||
-	    ast_test_flag(c1, AST_FLAG_ZOMBIE) || ast_check_hangup_locked(c1))
+	if (ast_test_flag(ast_channel_flags(c0), AST_FLAG_ZOMBIE) || ast_check_hangup_locked(c0) ||
+	    ast_test_flag(ast_channel_flags(c1), AST_FLAG_ZOMBIE) || ast_check_hangup_locked(c1))
 		return -1;
 
 	o0nativeformats = ast_format_cap_dup(ast_channel_nativeformats(c0));
@@ -7348,8 +7323,8 @@ enum ast_bridge_result ast_channel_bridge(struct ast_channel *c0, struct ast_cha
 	}
 
 	/* Keep track of bridge */
-	c0->_bridge = c1;
-	c1->_bridge = c0;
+	ast_channel_internal_bridged_channel_set(c0, c1);
+	ast_channel_internal_bridged_channel_set(c1, c0);
 
 	ast_set_owners_and_peers(c0, c1);
 
@@ -7375,9 +7350,9 @@ enum ast_bridge_result ast_channel_bridge(struct ast_channel *c0, struct ast_cha
 	}
 
 	if (!ast_channel_tech(c0)->send_digit_begin)
-		ast_set_flag(c1, AST_FLAG_END_DTMF_ONLY);
+		ast_set_flag(ast_channel_flags(c1), AST_FLAG_END_DTMF_ONLY);
 	if (!ast_channel_tech(c1)->send_digit_begin)
-		ast_set_flag(c0, AST_FLAG_END_DTMF_ONLY);
+		ast_set_flag(ast_channel_flags(c0), AST_FLAG_END_DTMF_ONLY);
 	manager_bridge_event(1, 1, c0, c1);
 
 	/* Before we enter in and bridge these two together tell them both the source of audio has changed */
@@ -7442,22 +7417,22 @@ enum ast_bridge_result ast_channel_bridge(struct ast_channel *c0, struct ast_cha
 			if (ast_channel_softhangup_internal_flag(c1) & AST_SOFTHANGUP_UNBRIDGE) {
 				ast_channel_clear_softhangup(c1, AST_SOFTHANGUP_UNBRIDGE);
 			}
-			c0->_bridge = c1;
-			c1->_bridge = c0;
+			ast_channel_internal_bridged_channel_set(c0, c1);
+			ast_channel_internal_bridged_channel_set(c1, c0);
 			ast_debug(1, "Unbridge signal received. Ending native bridge.\n");
 			continue;
 		}
 
 		/* Stop if we're a zombie or need a soft hangup */
-		if (ast_test_flag(c0, AST_FLAG_ZOMBIE) || ast_check_hangup_locked(c0) ||
-		    ast_test_flag(c1, AST_FLAG_ZOMBIE) || ast_check_hangup_locked(c1)) {
+		if (ast_test_flag(ast_channel_flags(c0), AST_FLAG_ZOMBIE) || ast_check_hangup_locked(c0) ||
+		    ast_test_flag(ast_channel_flags(c1), AST_FLAG_ZOMBIE) || ast_check_hangup_locked(c1)) {
 			*fo = NULL;
 			res = 0;
 			ast_debug(1, "Bridge stops because we're zombie or need a soft hangup: c0=%s, c1=%s, flags: %s,%s,%s,%s\n",
 				ast_channel_name(c0), ast_channel_name(c1),
-				ast_test_flag(c0, AST_FLAG_ZOMBIE) ? "Yes" : "No",
+				ast_test_flag(ast_channel_flags(c0), AST_FLAG_ZOMBIE) ? "Yes" : "No",
 				ast_check_hangup(c0) ? "Yes" : "No",
-				ast_test_flag(c1, AST_FLAG_ZOMBIE) ? "Yes" : "No",
+				ast_test_flag(ast_channel_flags(c1), AST_FLAG_ZOMBIE) ? "Yes" : "No",
 				ast_check_hangup(c1) ? "Yes" : "No");
 			break;
 		}
@@ -7476,27 +7451,27 @@ enum ast_bridge_result ast_channel_bridge(struct ast_channel *c0, struct ast_cha
 		    !ast_channel_masq(c0) && !ast_channel_masqr(c0) && !ast_channel_masq(c1) && !ast_channel_masqr(c1)) {
 			int timeoutms = to - 1000 > 0 ? to - 1000 : to;
 			/* Looks like they share a bridge method and nothing else is in the way */
-			ast_set_flag(c0, AST_FLAG_NBRIDGE);
-			ast_set_flag(c1, AST_FLAG_NBRIDGE);
+			ast_set_flag(ast_channel_flags(c0), AST_FLAG_NBRIDGE);
+			ast_set_flag(ast_channel_flags(c1), AST_FLAG_NBRIDGE);
 			if ((res = ast_channel_tech(c0)->bridge(c0, c1, config->flags, fo, rc, timeoutms)) == AST_BRIDGE_COMPLETE) {
 				manager_bridge_event(0, 1, c0, c1);
 				ast_debug(1, "Returning from native bridge, channels: %s, %s\n", ast_channel_name(c0), ast_channel_name(c1));
 
-				ast_clear_flag(c0, AST_FLAG_NBRIDGE);
-				ast_clear_flag(c1, AST_FLAG_NBRIDGE);
+				ast_clear_flag(ast_channel_flags(c0), AST_FLAG_NBRIDGE);
+				ast_clear_flag(ast_channel_flags(c1), AST_FLAG_NBRIDGE);
 
 				if ((ast_channel_softhangup_internal_flag(c0) | ast_channel_softhangup_internal_flag(c1)) & AST_SOFTHANGUP_UNBRIDGE) {/* Bit operators are intentional. */
 					continue;
 				}
 
-				c0->_bridge = NULL;
-				c1->_bridge = NULL;
+				ast_channel_internal_bridged_channel_set(c0, NULL);
+				ast_channel_internal_bridged_channel_set(c1, NULL);
 				ast_format_cap_destroy(o0nativeformats);
 				ast_format_cap_destroy(o1nativeformats);
 				return res;
 			} else {
-				ast_clear_flag(c0, AST_FLAG_NBRIDGE);
-				ast_clear_flag(c1, AST_FLAG_NBRIDGE);
+				ast_clear_flag(ast_channel_flags(c0), AST_FLAG_NBRIDGE);
+				ast_clear_flag(ast_channel_flags(c1), AST_FLAG_NBRIDGE);
 			}
 			switch (res) {
 			case AST_BRIDGE_RETRY:
@@ -7540,15 +7515,15 @@ enum ast_bridge_result ast_channel_bridge(struct ast_channel *c0, struct ast_cha
 		}
 	}
 
-	ast_clear_flag(c0, AST_FLAG_END_DTMF_ONLY);
-	ast_clear_flag(c1, AST_FLAG_END_DTMF_ONLY);
+	ast_clear_flag(ast_channel_flags(c0), AST_FLAG_END_DTMF_ONLY);
+	ast_clear_flag(ast_channel_flags(c1), AST_FLAG_END_DTMF_ONLY);
 
 	/* Now that we have broken the bridge the source will change yet again */
 	ast_indicate(c0, AST_CONTROL_SRCUPDATE);
 	ast_indicate(c1, AST_CONTROL_SRCUPDATE);
 
-	c0->_bridge = NULL;
-	c1->_bridge = NULL;
+	ast_channel_internal_bridged_channel_set(c0, NULL);
+	ast_channel_internal_bridged_channel_set(c1, NULL);
 
 	manager_bridge_event(0, 1, c0, c1);
 	ast_debug(1, "Bridge stops bridging channels %s and %s\n", ast_channel_name(c0), ast_channel_name(c1));
@@ -7658,7 +7633,7 @@ static void *tonepair_alloc(struct ast_channel *chan, void *params)
 		ts->modulate = 0;
 	}
 	/* Let interrupts interrupt :) */
-	ast_set_flag(chan, AST_FLAG_WRITE_INT);
+	ast_set_flag(ast_channel_flags(chan), AST_FLAG_WRITE_INT);
 	return ts;
 }
 
diff --git a/main/channel_internal_api.c b/main/channel_internal_api.c
index 0a7060e29e..4f89ca7886 100644
--- a/main/channel_internal_api.c
+++ b/main/channel_internal_api.c
@@ -38,6 +38,154 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/stringfields.h"
 #include "asterisk/data.h"
 #include "asterisk/indications.h"
+#include "asterisk/channel_internal.h"
+
+/*!
+ * \brief Main Channel structure associated with a channel.
+ *
+ * \note XXX It is important to remember to increment .cleancount each time
+ *       this structure is changed. XXX
+ *
+ * \note When adding fields to this structure, it is important to add the field
+ *       'in position' with like-aligned fields, so as to keep the compiler from
+ *       having to add padding to align fields. The structure's fields are sorted
+ *       in this order: pointers, structures, long, int/enum, short, char. This
+ *       is especially important on 64-bit architectures, where mixing 4-byte
+ *       and 8-byte fields causes 4 bytes of padding to be added before many
+ *       8-byte fields.
+ */
+struct ast_channel {
+	const struct ast_channel_tech *tech;		/*!< Technology (point to channel driver) */
+	void *tech_pvt;					/*!< Private data used by the technology driver */
+	void *music_state;				/*!< Music State*/
+	void *generatordata;				/*!< Current generator data if there is any */
+	struct ast_generator *generator;		/*!< Current active data generator */
+	struct ast_channel * bridged_channel;			/*!< Who are we bridged to, if we're bridged.
+							 *   Who is proxying for us, if we are proxied (i.e. chan_agent).
+							 *   Do not access directly, use ast_bridged_channel(chan) */
+	struct ast_channel *masq;			/*!< Channel that will masquerade as us */
+	struct ast_channel *masqr;			/*!< Who we are masquerading as */
+	const char *blockproc;				/*!< Procedure causing blocking */
+	const char *appl;				/*!< Current application */
+	const char *data;				/*!< Data passed to current application */
+	struct ast_sched_context *sched;                /*!< Schedule context */
+	struct ast_filestream *stream;			/*!< Stream itself. */
+	struct ast_filestream *vstream;			/*!< Video Stream itself. */
+	ast_timing_func_t timingfunc;
+	void *timingdata;
+	struct ast_pbx *pbx;				/*!< PBX private structure for this channel */
+	struct ast_trans_pvt *writetrans;		/*!< Write translation path */
+	struct ast_trans_pvt *readtrans;		/*!< Read translation path */
+	struct ast_audiohook_list *audiohooks;
+	struct ast_framehook_list *framehooks;
+	struct ast_cdr *cdr;				/*!< Call Detail Record */
+	struct ast_tone_zone *zone;			/*!< Tone zone as set in indications.conf or
+							 *   in the CHANNEL dialplan function */
+	struct ast_channel_monitor *monitor;		/*!< Channel monitoring */
+#ifdef HAVE_EPOLL
+	struct ast_epoll_data *epfd_data[AST_MAX_FDS];
+#endif
+
+	AST_DECLARE_STRING_FIELDS(
+		AST_STRING_FIELD(name);         /*!< ASCII unique channel name */
+		AST_STRING_FIELD(language);     /*!< Language requested for voice prompts */
+		AST_STRING_FIELD(musicclass);   /*!< Default music class */
+		AST_STRING_FIELD(accountcode);  /*!< Account code for billing */
+		AST_STRING_FIELD(peeraccount);  /*!< Peer account code for billing */
+		AST_STRING_FIELD(userfield);    /*!< Userfield for CEL billing */
+		AST_STRING_FIELD(call_forward); /*!< Where to forward to if asked to dial on this interface */
+		AST_STRING_FIELD(uniqueid);     /*!< Unique Channel Identifier */
+		AST_STRING_FIELD(linkedid);     /*!< Linked Channel Identifier -- gets propagated by linkage */
+		AST_STRING_FIELD(parkinglot);   /*! Default parking lot, if empty, default parking lot  */
+		AST_STRING_FIELD(hangupsource); /*! Who is responsible for hanging up this channel */
+		AST_STRING_FIELD(dialcontext);  /*!< Dial: Extension context that we were called from */
+	);
+
+	struct timeval whentohangup; /*!< Non-zero, set to actual time when channel is to be hung up */
+	pthread_t blocker;           /*!< If anyone is blocking, this is them */
+
+	/*!
+	 * \brief Dialed/Called information.
+	 * \note Set on incoming channels to indicate the originally dialed party.
+	 * \note Dialed Number Identifier (DNID)
+	 */
+	struct ast_party_dialed dialed;
+
+	/*!
+	 * \brief Channel Caller ID information.
+	 * \note The caller id information is the caller id of this
+	 * channel when it is used to initiate a call.
+	 */
+	struct ast_party_caller caller;
+
+	/*!
+	 * \brief Channel Connected Line ID information.
+	 * \note The connected line information identifies the channel
+	 * connected/bridged to this channel.
+	 */
+	struct ast_party_connected_line connected;
+
+	/*! \brief Redirecting/Diversion information */
+	struct ast_party_redirecting redirecting;
+
+	struct ast_frame dtmff;				/*!< DTMF frame */
+	struct varshead varshead;			/*!< A linked list for channel variables. See \ref AstChanVar */
+	ast_group_t callgroup;				/*!< Call group for call pickups */
+	ast_group_t pickupgroup;			/*!< Pickup group - which calls groups can be picked up? */
+	struct ast_readq_list readq;
+	struct ast_jb jb;				/*!< The jitterbuffer state */
+	struct timeval dtmf_tv;				/*!< The time that an in process digit began, or the last digit ended */
+	struct ast_datastore_list datastores; /*!< Data stores on the channel */
+	struct ast_autochan_list autochans; /*!< Autochans on the channel */
+	unsigned long insmpl;				/*!< Track the read/written samples for monitor use */
+	unsigned long outsmpl;				/*!< Track the read/written samples for monitor use */
+
+	int fds[AST_MAX_FDS];				/*!< File descriptors for channel -- Drivers will poll on
+							 *   these file descriptors, so at least one must be non -1.
+							 *   See \arg \ref AstFileDesc */
+	int softhangup;				/*!< Whether or not we have been hung up...  Do not set this value
+							 *   directly, use ast_softhangup() */
+	int fdno;					/*!< Which fd had an event detected on */
+	int streamid;					/*!< For streaming playback, the schedule ID */
+	int vstreamid;					/*!< For streaming video playback, the schedule ID */
+	struct ast_format oldwriteformat;  /*!< Original writer format */
+	int timingfd;					/*!< Timing fd */
+	enum ast_channel_state state;			/*!< State of line -- Don't write directly, use ast_setstate() */
+	int rings;					/*!< Number of rings so far */
+	int priority;					/*!< Dialplan: Current extension priority */
+	int macropriority;				/*!< Macro: Current non-macro priority. See app_macro.c */
+	int amaflags;					/*!< Set BEFORE PBX is started to determine AMA flags */
+	enum ast_channel_adsicpe adsicpe;		/*!< Whether or not ADSI is detected on CPE */
+	unsigned int fin;				/*!< Frames in counters. The high bit is a debug mask, so
+							 *   the counter is only in the remaining bits */
+	unsigned int fout;				/*!< Frames out counters. The high bit is a debug mask, so
+							 *   the counter is only in the remaining bits */
+	int hangupcause;				/*!< Why is the channel hanged up. See causes.h */
+	unsigned int finalized:1;       /*!< Whether or not the channel has been successfully allocated */
+	struct ast_flags flags;				/*!< channel flags of AST_FLAG_ type */
+	int alertpipe[2];
+	struct ast_format_cap *nativeformats;         /*!< Kinds of data this channel can natively handle */
+	struct ast_format readformat;            /*!< Requested read format (after translation) */
+	struct ast_format writeformat;           /*!< Requested write format (after translation) */
+	struct ast_format rawreadformat;         /*!< Raw read format (before translation) */
+	struct ast_format rawwriteformat;        /*!< Raw write format (before translation) */
+	unsigned int emulate_dtmf_duration;		/*!< Number of ms left to emulate DTMF for */
+#ifdef HAVE_EPOLL
+	int epfd;
+#endif
+	int visible_indication;                         /*!< Indication currently playing on the channel */
+
+	unsigned short transfercapability;		/*!< ISDN Transfer Capability - AST_FLAG_DIGITAL is not enough */
+
+	struct ast_bridge *bridge;                      /*!< Bridge this channel is participating in */
+	struct ast_timer *timer;			/*!< timer object that provided timingfd */
+
+	char context[AST_MAX_CONTEXT];			/*!< Dialplan: Current extension context */
+	char exten[AST_MAX_EXTENSION];			/*!< Dialplan: Current extension number */
+	char macrocontext[AST_MAX_CONTEXT];		/*!< Macro: Current non-macro context. See app_macro.c */
+	char macroexten[AST_MAX_EXTENSION];		/*!< Macro: Current non-macro extension. See app_macro.c */
+	char dtmf_digit_to_emulate;			/*!< Digit being emulated */
+};
 
 /* AST_DATA definitions, which will probably have to be re-thought since the channel will be opaque */
 
@@ -55,57 +203,57 @@ AST_DATA_STRUCTURE(ast_callerid, DATA_EXPORT_CALLERID);
 #endif
 
 #define DATA_EXPORT_CHANNEL(MEMBER)						\
-	MEMBER(ast_channel, __do_not_use_blockproc, AST_DATA_STRING)				\
-	MEMBER(ast_channel, __do_not_use_appl, AST_DATA_STRING)				\
-	MEMBER(ast_channel, __do_not_use_data, AST_DATA_STRING)				\
-	MEMBER(ast_channel, __do_not_use_name, AST_DATA_STRING) \
-	MEMBER(ast_channel, __do_not_use_language, AST_DATA_STRING)				\
-	MEMBER(ast_channel, __do_not_use_musicclass, AST_DATA_STRING)			\
-	MEMBER(ast_channel, __do_not_use_accountcode, AST_DATA_STRING)			\
-	MEMBER(ast_channel, __do_not_use_peeraccount, AST_DATA_STRING)			\
-	MEMBER(ast_channel, __do_not_use_userfield, AST_DATA_STRING)				\
-	MEMBER(ast_channel, __do_not_use_call_forward, AST_DATA_STRING)			\
-	MEMBER(ast_channel, __do_not_use_uniqueid, AST_DATA_STRING)				\
-	MEMBER(ast_channel, __do_not_use_linkedid, AST_DATA_STRING)				\
-	MEMBER(ast_channel, __do_not_use_parkinglot, AST_DATA_STRING)			\
-	MEMBER(ast_channel, __do_not_use_hangupsource, AST_DATA_STRING)			\
-	MEMBER(ast_channel, __do_not_use_dialcontext, AST_DATA_STRING)			\
-	MEMBER(ast_channel, __do_not_use_rings, AST_DATA_INTEGER)				\
-	MEMBER(ast_channel, __do_not_use_priority, AST_DATA_INTEGER)				\
-	MEMBER(ast_channel, __do_not_use_macropriority, AST_DATA_INTEGER)			\
-	MEMBER(ast_channel, __do_not_use_adsicpe, AST_DATA_INTEGER)				\
-	MEMBER(ast_channel, __do_not_use_fin, AST_DATA_UNSIGNED_INTEGER)			\
-	MEMBER(ast_channel, __do_not_use_fout, AST_DATA_UNSIGNED_INTEGER)			\
-	MEMBER(ast_channel, __do_not_use_emulate_dtmf_duration, AST_DATA_UNSIGNED_INTEGER)	\
-	MEMBER(ast_channel, __do_not_use_visible_indication, AST_DATA_INTEGER)		\
-	MEMBER(ast_channel, __do_not_use_context, AST_DATA_STRING)				\
-	MEMBER(ast_channel, __do_not_use_exten, AST_DATA_STRING)				\
-	MEMBER(ast_channel, __do_not_use_macrocontext, AST_DATA_STRING)			\
-	MEMBER(ast_channel, __do_not_use_macroexten, AST_DATA_STRING)
+	MEMBER(ast_channel, blockproc, AST_DATA_STRING)				\
+	MEMBER(ast_channel, appl, AST_DATA_STRING)				\
+	MEMBER(ast_channel, data, AST_DATA_STRING)				\
+	MEMBER(ast_channel, name, AST_DATA_STRING) \
+	MEMBER(ast_channel, language, AST_DATA_STRING)				\
+	MEMBER(ast_channel, musicclass, AST_DATA_STRING)			\
+	MEMBER(ast_channel, accountcode, AST_DATA_STRING)			\
+	MEMBER(ast_channel, peeraccount, AST_DATA_STRING)			\
+	MEMBER(ast_channel, userfield, AST_DATA_STRING)				\
+	MEMBER(ast_channel, call_forward, AST_DATA_STRING)			\
+	MEMBER(ast_channel, uniqueid, AST_DATA_STRING)				\
+	MEMBER(ast_channel, linkedid, AST_DATA_STRING)				\
+	MEMBER(ast_channel, parkinglot, AST_DATA_STRING)			\
+	MEMBER(ast_channel, hangupsource, AST_DATA_STRING)			\
+	MEMBER(ast_channel, dialcontext, AST_DATA_STRING)			\
+	MEMBER(ast_channel, rings, AST_DATA_INTEGER)				\
+	MEMBER(ast_channel, priority, AST_DATA_INTEGER)				\
+	MEMBER(ast_channel, macropriority, AST_DATA_INTEGER)			\
+	MEMBER(ast_channel, adsicpe, AST_DATA_INTEGER)				\
+	MEMBER(ast_channel, fin, AST_DATA_UNSIGNED_INTEGER)			\
+	MEMBER(ast_channel, fout, AST_DATA_UNSIGNED_INTEGER)			\
+	MEMBER(ast_channel, emulate_dtmf_duration, AST_DATA_UNSIGNED_INTEGER)	\
+	MEMBER(ast_channel, visible_indication, AST_DATA_INTEGER)		\
+	MEMBER(ast_channel, context, AST_DATA_STRING)				\
+	MEMBER(ast_channel, exten, AST_DATA_STRING)				\
+	MEMBER(ast_channel, macrocontext, AST_DATA_STRING)			\
+	MEMBER(ast_channel, macroexten, AST_DATA_STRING)
 
 AST_DATA_STRUCTURE(ast_channel, DATA_EXPORT_CHANNEL);
 
 static void channel_data_add_flags(struct ast_data *tree,
 	struct ast_channel *chan)
 {
-	ast_data_add_bool(tree, "DEFER_DTMF", ast_test_flag(chan, AST_FLAG_DEFER_DTMF));
-	ast_data_add_bool(tree, "WRITE_INT", ast_test_flag(chan, AST_FLAG_WRITE_INT));
-	ast_data_add_bool(tree, "BLOCKING", ast_test_flag(chan, AST_FLAG_BLOCKING));
-	ast_data_add_bool(tree, "ZOMBIE", ast_test_flag(chan, AST_FLAG_ZOMBIE));
-	ast_data_add_bool(tree, "EXCEPTION", ast_test_flag(chan, AST_FLAG_EXCEPTION));
-	ast_data_add_bool(tree, "MOH", ast_test_flag(chan, AST_FLAG_MOH));
-	ast_data_add_bool(tree, "SPYING", ast_test_flag(chan, AST_FLAG_SPYING));
-	ast_data_add_bool(tree, "NBRIDGE", ast_test_flag(chan, AST_FLAG_NBRIDGE));
-	ast_data_add_bool(tree, "IN_AUTOLOOP", ast_test_flag(chan, AST_FLAG_IN_AUTOLOOP));
-	ast_data_add_bool(tree, "OUTGOING", ast_test_flag(chan, AST_FLAG_OUTGOING));
-	ast_data_add_bool(tree, "IN_DTMF", ast_test_flag(chan, AST_FLAG_IN_DTMF));
-	ast_data_add_bool(tree, "EMULATE_DTMF", ast_test_flag(chan, AST_FLAG_EMULATE_DTMF));
-	ast_data_add_bool(tree, "END_DTMF_ONLY", ast_test_flag(chan, AST_FLAG_END_DTMF_ONLY));
-	ast_data_add_bool(tree, "ANSWERED_ELSEWHERE", ast_test_flag(chan, AST_FLAG_ANSWERED_ELSEWHERE));
-	ast_data_add_bool(tree, "MASQ_NOSTREAM", ast_test_flag(chan, AST_FLAG_MASQ_NOSTREAM));
-	ast_data_add_bool(tree, "BRIDGE_HANGUP_RUN", ast_test_flag(chan, AST_FLAG_BRIDGE_HANGUP_RUN));
-	ast_data_add_bool(tree, "BRIDGE_HANGUP_DONT", ast_test_flag(chan, AST_FLAG_BRIDGE_HANGUP_DONT));
-	ast_data_add_bool(tree, "DISABLE_WORKAROUNDS", ast_test_flag(chan, AST_FLAG_DISABLE_WORKAROUNDS));
+	ast_data_add_bool(tree, "DEFER_DTMF", ast_test_flag(ast_channel_flags(chan), AST_FLAG_DEFER_DTMF));
+	ast_data_add_bool(tree, "WRITE_INT", ast_test_flag(ast_channel_flags(chan), AST_FLAG_WRITE_INT));
+	ast_data_add_bool(tree, "BLOCKING", ast_test_flag(ast_channel_flags(chan), AST_FLAG_BLOCKING));
+	ast_data_add_bool(tree, "ZOMBIE", ast_test_flag(ast_channel_flags(chan), AST_FLAG_ZOMBIE));
+	ast_data_add_bool(tree, "EXCEPTION", ast_test_flag(ast_channel_flags(chan), AST_FLAG_EXCEPTION));
+	ast_data_add_bool(tree, "MOH", ast_test_flag(ast_channel_flags(chan), AST_FLAG_MOH));
+	ast_data_add_bool(tree, "SPYING", ast_test_flag(ast_channel_flags(chan), AST_FLAG_SPYING));
+	ast_data_add_bool(tree, "NBRIDGE", ast_test_flag(ast_channel_flags(chan), AST_FLAG_NBRIDGE));
+	ast_data_add_bool(tree, "IN_AUTOLOOP", ast_test_flag(ast_channel_flags(chan), AST_FLAG_IN_AUTOLOOP));
+	ast_data_add_bool(tree, "OUTGOING", ast_test_flag(ast_channel_flags(chan), AST_FLAG_OUTGOING));
+	ast_data_add_bool(tree, "IN_DTMF", ast_test_flag(ast_channel_flags(chan), AST_FLAG_IN_DTMF));
+	ast_data_add_bool(tree, "EMULATE_DTMF", ast_test_flag(ast_channel_flags(chan), AST_FLAG_EMULATE_DTMF));
+	ast_data_add_bool(tree, "END_DTMF_ONLY", ast_test_flag(ast_channel_flags(chan), AST_FLAG_END_DTMF_ONLY));
+	ast_data_add_bool(tree, "ANSWERED_ELSEWHERE", ast_test_flag(ast_channel_flags(chan), AST_FLAG_ANSWERED_ELSEWHERE));
+	ast_data_add_bool(tree, "MASQ_NOSTREAM", ast_test_flag(ast_channel_flags(chan), AST_FLAG_MASQ_NOSTREAM));
+	ast_data_add_bool(tree, "BRIDGE_HANGUP_RUN", ast_test_flag(ast_channel_flags(chan), AST_FLAG_BRIDGE_HANGUP_RUN));
+	ast_data_add_bool(tree, "BRIDGE_HANGUP_DONT", ast_test_flag(ast_channel_flags(chan), AST_FLAG_BRIDGE_HANGUP_DONT));
+	ast_data_add_bool(tree, "DISABLE_WORKAROUNDS", ast_test_flag(ast_channel_flags(chan), AST_FLAG_DISABLE_WORKAROUNDS));
 }
 
 int ast_channel_data_add_structure(struct ast_data *tree,
@@ -251,12 +399,12 @@ int ast_channel_data_cmp_structure(const struct ast_data_search *tree,
 #define DEFINE_STRINGFIELD_SETTERS_FOR(field) \
 void ast_channel_##field##_set(struct ast_channel *chan, const char *value) \
 { \
-	ast_string_field_set(chan, __do_not_use_##field, value); \
+	ast_string_field_set(chan, field, value); \
 } \
   \
 void ast_channel_##field##_build_va(struct ast_channel *chan, const char *fmt, va_list ap) \
 { \
-	ast_string_field_build_va(chan, __do_not_use_##field, fmt, ap); \
+	ast_string_field_build_va(chan, field, fmt, ap); \
 } \
 void ast_channel_##field##_build(struct ast_channel *chan, const char *fmt, ...) \
 { \
@@ -266,573 +414,571 @@ void ast_channel_##field##_build(struct ast_channel *chan, const char *fmt, ...)
 	va_end(ap); \
 }
 
-DEFINE_STRINGFIELD_SETTERS_FOR(name)
-DEFINE_STRINGFIELD_SETTERS_FOR(language)
-DEFINE_STRINGFIELD_SETTERS_FOR(musicclass)
-DEFINE_STRINGFIELD_SETTERS_FOR(accountcode)
-DEFINE_STRINGFIELD_SETTERS_FOR(peeraccount)
-DEFINE_STRINGFIELD_SETTERS_FOR(userfield)
-DEFINE_STRINGFIELD_SETTERS_FOR(call_forward)
-DEFINE_STRINGFIELD_SETTERS_FOR(uniqueid)
-DEFINE_STRINGFIELD_SETTERS_FOR(linkedid)
-DEFINE_STRINGFIELD_SETTERS_FOR(parkinglot)
-DEFINE_STRINGFIELD_SETTERS_FOR(hangupsource)
-DEFINE_STRINGFIELD_SETTERS_FOR(dialcontext)
+DEFINE_STRINGFIELD_SETTERS_FOR(name);
+DEFINE_STRINGFIELD_SETTERS_FOR(language);
+DEFINE_STRINGFIELD_SETTERS_FOR(musicclass);
+DEFINE_STRINGFIELD_SETTERS_FOR(accountcode);
+DEFINE_STRINGFIELD_SETTERS_FOR(peeraccount);
+DEFINE_STRINGFIELD_SETTERS_FOR(userfield);
+DEFINE_STRINGFIELD_SETTERS_FOR(call_forward);
+DEFINE_STRINGFIELD_SETTERS_FOR(uniqueid);
+DEFINE_STRINGFIELD_SETTERS_FOR(linkedid);
+DEFINE_STRINGFIELD_SETTERS_FOR(parkinglot);
+DEFINE_STRINGFIELD_SETTERS_FOR(hangupsource);
+DEFINE_STRINGFIELD_SETTERS_FOR(dialcontext);
 
 #define DEFINE_STRINGFIELD_GETTER_FOR(field) const char *ast_channel_##field(const struct ast_channel *chan) \
 { \
-	return chan->__do_not_use_##field; \
-}
-
-DEFINE_STRINGFIELD_GETTER_FOR(name)
-DEFINE_STRINGFIELD_GETTER_FOR(language)
-DEFINE_STRINGFIELD_GETTER_FOR(musicclass)
-DEFINE_STRINGFIELD_GETTER_FOR(accountcode)
-DEFINE_STRINGFIELD_GETTER_FOR(peeraccount)
-DEFINE_STRINGFIELD_GETTER_FOR(userfield)
-DEFINE_STRINGFIELD_GETTER_FOR(call_forward)
-DEFINE_STRINGFIELD_GETTER_FOR(uniqueid)
-DEFINE_STRINGFIELD_GETTER_FOR(linkedid)
-DEFINE_STRINGFIELD_GETTER_FOR(parkinglot)
-DEFINE_STRINGFIELD_GETTER_FOR(hangupsource)
-DEFINE_STRINGFIELD_GETTER_FOR(dialcontext)
+	return chan->field; \
+}
+
+DEFINE_STRINGFIELD_GETTER_FOR(name);
+DEFINE_STRINGFIELD_GETTER_FOR(language);
+DEFINE_STRINGFIELD_GETTER_FOR(musicclass);
+DEFINE_STRINGFIELD_GETTER_FOR(accountcode);
+DEFINE_STRINGFIELD_GETTER_FOR(peeraccount);
+DEFINE_STRINGFIELD_GETTER_FOR(userfield);
+DEFINE_STRINGFIELD_GETTER_FOR(call_forward);
+DEFINE_STRINGFIELD_GETTER_FOR(uniqueid);
+DEFINE_STRINGFIELD_GETTER_FOR(linkedid);
+DEFINE_STRINGFIELD_GETTER_FOR(parkinglot);
+DEFINE_STRINGFIELD_GETTER_FOR(hangupsource);
+DEFINE_STRINGFIELD_GETTER_FOR(dialcontext);
 
 const char *ast_channel_appl(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_appl;
+	return chan->appl;
 }
 void ast_channel_appl_set(struct ast_channel *chan, const char *value)
 {
-	chan->__do_not_use_appl = value;
+	chan->appl = value;
 }
 const char *ast_channel_blockproc(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_blockproc;
+	return chan->blockproc;
 }
 void ast_channel_blockproc_set(struct ast_channel *chan, const char *value)
 {
-	chan->__do_not_use_blockproc = value;
+	chan->blockproc = value;
 }
 const char *ast_channel_data(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_data;
+	return chan->data;
 }
 void ast_channel_data_set(struct ast_channel *chan, const char *value)
 {
-	chan->__do_not_use_data = value;
+	chan->data = value;
 }
 
-
 const char *ast_channel_context(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_context;
+	return chan->context;
 }
 void ast_channel_context_set(struct ast_channel *chan, const char *value)
 {
-	ast_copy_string(chan->__do_not_use_context, value, sizeof(chan->__do_not_use_context));
+	ast_copy_string(chan->context, value, sizeof(chan->context));
 }
 const char *ast_channel_exten(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_exten;
+	return chan->exten;
 }
 void ast_channel_exten_set(struct ast_channel *chan, const char *value)
 {
-	ast_copy_string(chan->__do_not_use_exten, value, sizeof(chan->__do_not_use_exten));
+	ast_copy_string(chan->exten, value, sizeof(chan->exten));
 }
 const char *ast_channel_macrocontext(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_macrocontext;
+	return chan->macrocontext;
 }
 void ast_channel_macrocontext_set(struct ast_channel *chan, const char *value)
 {
-	ast_copy_string(chan->__do_not_use_macrocontext, value, sizeof(chan->__do_not_use_macrocontext));
+	ast_copy_string(chan->macrocontext, value, sizeof(chan->macrocontext));
 }
 const char *ast_channel_macroexten(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_macroexten;
+	return chan->macroexten;
 }
 void ast_channel_macroexten_set(struct ast_channel *chan, const char *value)
 {
-	ast_copy_string(chan->__do_not_use_macroexten, value, sizeof(chan->__do_not_use_macroexten));
+	ast_copy_string(chan->macroexten, value, sizeof(chan->macroexten));
 }
 
-
 char ast_channel_dtmf_digit_to_emulate(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_dtmf_digit_to_emulate;
+	return chan->dtmf_digit_to_emulate;
 }
 void ast_channel_dtmf_digit_to_emulate_set(struct ast_channel *chan, char value)
 {
-	chan->__do_not_use_dtmf_digit_to_emulate = value;
+	chan->dtmf_digit_to_emulate = value;
 }
 int ast_channel_amaflags(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_amaflags;
+	return chan->amaflags;
 }
 void ast_channel_amaflags_set(struct ast_channel *chan, int value)
 {
-	chan->__do_not_use_amaflags = value;
+	chan->amaflags = value;
 }
 #ifdef HAVE_EPOLL
 int ast_channel_epfd(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_epfd;
+	return chan->epfd;
 }
 void ast_channel_epfd_set(struct ast_channel *chan, int value)
 {
-	chan->__do_not_use_epfd = value;
+	chan->epfd = value;
 }
 #endif
 int ast_channel_fdno(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_fdno;
+	return chan->fdno;
 }
 void ast_channel_fdno_set(struct ast_channel *chan, int value)
 {
-	chan->__do_not_use_fdno = value;
+	chan->fdno = value;
 }
 int ast_channel_hangupcause(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_hangupcause;
+	return chan->hangupcause;
 }
 void ast_channel_hangupcause_set(struct ast_channel *chan, int value)
 {
-	chan->__do_not_use_hangupcause = value;
+	chan->hangupcause = value;
 }
 int ast_channel_macropriority(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_macropriority;
+	return chan->macropriority;
 }
 void ast_channel_macropriority_set(struct ast_channel *chan, int value)
 {
-	chan->__do_not_use_macropriority = value;
+	chan->macropriority = value;
 }
 int ast_channel_priority(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_priority;
+	return chan->priority;
 }
 void ast_channel_priority_set(struct ast_channel *chan, int value)
 {
-	chan->__do_not_use_priority = value;
+	chan->priority = value;
 }
 int ast_channel_rings(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_rings;
+	return chan->rings;
 }
 void ast_channel_rings_set(struct ast_channel *chan, int value)
 {
-	chan->__do_not_use_rings = value;
+	chan->rings = value;
 }
 int ast_channel_streamid(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_streamid;
+	return chan->streamid;
 }
 void ast_channel_streamid_set(struct ast_channel *chan, int value)
 {
-	chan->__do_not_use_streamid = value;
+	chan->streamid = value;
 }
 int ast_channel_timingfd(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_timingfd;
+	return chan->timingfd;
 }
 void ast_channel_timingfd_set(struct ast_channel *chan, int value)
 {
-	chan->__do_not_use_timingfd = value;
+	chan->timingfd = value;
 }
 int ast_channel_visible_indication(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_visible_indication;
+	return chan->visible_indication;
 }
 void ast_channel_visible_indication_set(struct ast_channel *chan, int value)
 {
-	chan->__do_not_use_visible_indication = value;
+	chan->visible_indication = value;
 }
 int ast_channel_vstreamid(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_vstreamid;
+	return chan->vstreamid;
 }
 void ast_channel_vstreamid_set(struct ast_channel *chan, int value)
 {
-	chan->__do_not_use_vstreamid = value;
+	chan->vstreamid = value;
 }
 unsigned short ast_channel_transfercapability(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_transfercapability;
+	return chan->transfercapability;
 }
 void ast_channel_transfercapability_set(struct ast_channel *chan, unsigned short value)
 {
-	chan->__do_not_use_transfercapability = value;
+	chan->transfercapability = value;
 }
 unsigned int ast_channel_emulate_dtmf_duration(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_emulate_dtmf_duration;
+	return chan->emulate_dtmf_duration;
 }
 void ast_channel_emulate_dtmf_duration_set(struct ast_channel *chan, unsigned int value)
 {
-	chan->__do_not_use_emulate_dtmf_duration = value;
+	chan->emulate_dtmf_duration = value;
 }
 unsigned int ast_channel_fin(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_fin;
+	return chan->fin;
 }
 void ast_channel_fin_set(struct ast_channel *chan, unsigned int value)
 {
-	chan->__do_not_use_fin = value;
+	chan->fin = value;
 }
 unsigned int ast_channel_fout(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_fout;
+	return chan->fout;
 }
 void ast_channel_fout_set(struct ast_channel *chan, unsigned int value)
 {
-	chan->__do_not_use_fout = value;
+	chan->fout = value;
 }
 unsigned long ast_channel_insmpl(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_insmpl;
+	return chan->insmpl;
 }
 void ast_channel_insmpl_set(struct ast_channel *chan, unsigned long value)
 {
-	chan->__do_not_use_insmpl = value;
+	chan->insmpl = value;
 }
 unsigned long ast_channel_outsmpl(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_outsmpl;
+	return chan->outsmpl;
 }
 void ast_channel_outsmpl_set(struct ast_channel *chan, unsigned long value)
 {
-	chan->__do_not_use_outsmpl = value;
+	chan->outsmpl = value;
 }
 void *ast_channel_generatordata(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_generatordata;
+	return chan->generatordata;
 }
 void ast_channel_generatordata_set(struct ast_channel *chan, void *value)
 {
-	chan->__do_not_use_generatordata = value;
+	chan->generatordata = value;
 }
 void *ast_channel_music_state(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_music_state;
+	return chan->music_state;
 }
 void ast_channel_music_state_set(struct ast_channel *chan, void *value)
 {
-	chan->__do_not_use_music_state = value;
+	chan->music_state = value;
 }
 void *ast_channel_tech_pvt(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_tech_pvt;
+	return chan->tech_pvt;
 }
 void ast_channel_tech_pvt_set(struct ast_channel *chan, void *value)
 {
-	chan->__do_not_use_tech_pvt = value;
+	chan->tech_pvt = value;
 }
 void *ast_channel_timingdata(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_timingdata;
+	return chan->timingdata;
 }
 void ast_channel_timingdata_set(struct ast_channel *chan, void *value)
 {
-	chan->__do_not_use_timingdata = value;
+	chan->timingdata = value;
 }
 struct ast_audiohook_list *ast_channel_audiohooks(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_audiohooks;
+	return chan->audiohooks;
 }
 void ast_channel_audiohooks_set(struct ast_channel *chan, struct ast_audiohook_list *value)
 {
-	chan->__do_not_use_audiohooks = value;
+	chan->audiohooks = value;
 }
 struct ast_cdr *ast_channel_cdr(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_cdr;
+	return chan->cdr;
 }
 void ast_channel_cdr_set(struct ast_channel *chan, struct ast_cdr *value)
 {
-	chan->__do_not_use_cdr = value;
+	chan->cdr = value;
 }
 struct ast_channel *ast_channel_masq(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_masq;
+	return chan->masq;
 }
 void ast_channel_masq_set(struct ast_channel *chan, struct ast_channel *value)
 {
-	chan->__do_not_use_masq = value;
+	chan->masq = value;
 }
 struct ast_channel *ast_channel_masqr(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_masqr;
+	return chan->masqr;
 }
 void ast_channel_masqr_set(struct ast_channel *chan, struct ast_channel *value)
 {
-	chan->__do_not_use_masqr = value;
+	chan->masqr = value;
 }
 struct ast_channel_monitor *ast_channel_monitor(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_monitor;
+	return chan->monitor;
 }
 void ast_channel_monitor_set(struct ast_channel *chan, struct ast_channel_monitor *value)
 {
-	chan->__do_not_use_monitor = value;
+	chan->monitor = value;
 }
 struct ast_filestream *ast_channel_stream(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_stream;
+	return chan->stream;
 }
 void ast_channel_stream_set(struct ast_channel *chan, struct ast_filestream *value)
 {
-	chan->__do_not_use_stream = value;
+	chan->stream = value;
 }
 struct ast_filestream *ast_channel_vstream(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_vstream;
+	return chan->vstream;
 }
 void ast_channel_vstream_set(struct ast_channel *chan, struct ast_filestream *value)
 {
-	chan->__do_not_use_vstream = value;
+	chan->vstream = value;
 }
 struct ast_format_cap *ast_channel_nativeformats(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_nativeformats;
+	return chan->nativeformats;
 }
 void ast_channel_nativeformats_set(struct ast_channel *chan, struct ast_format_cap *value)
 {
-	chan->__do_not_use_nativeformats = value;
+	chan->nativeformats = value;
 }
 struct ast_framehook_list *ast_channel_framehooks(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_framehooks;
+	return chan->framehooks;
 }
 void ast_channel_framehooks_set(struct ast_channel *chan, struct ast_framehook_list *value)
 {
-	chan->__do_not_use_framehooks = value;
+	chan->framehooks = value;
 }
 struct ast_generator *ast_channel_generator(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_generator;
+	return chan->generator;
 }
 void ast_channel_generator_set(struct ast_channel *chan, struct ast_generator *value)
 {
-	chan->__do_not_use_generator = value;
+	chan->generator = value;
 }
 struct ast_pbx *ast_channel_pbx(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_pbx;
+	return chan->pbx;
 }
 void ast_channel_pbx_set(struct ast_channel *chan, struct ast_pbx *value)
 {
-	chan->__do_not_use_pbx = value;
+	chan->pbx = value;
 }
 struct ast_sched_context *ast_channel_sched(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_sched;
+	return chan->sched;
 }
 void ast_channel_sched_set(struct ast_channel *chan, struct ast_sched_context *value)
 {
-	chan->__do_not_use_sched = value;
+	chan->sched = value;
 }
 struct ast_timer *ast_channel_timer(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_timer;
+	return chan->timer;
 }
 void ast_channel_timer_set(struct ast_channel *chan, struct ast_timer *value)
 {
-	chan->__do_not_use_timer = value;
+	chan->timer = value;
 }
 struct ast_tone_zone *ast_channel_zone(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_zone;
+	return chan->zone;
 }
 void ast_channel_zone_set(struct ast_channel *chan, struct ast_tone_zone *value)
 {
-	chan->__do_not_use_zone = value;
+	chan->zone = value;
 }
 struct ast_trans_pvt *ast_channel_readtrans(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_readtrans;
+	return chan->readtrans;
 }
 void ast_channel_readtrans_set(struct ast_channel *chan, struct ast_trans_pvt *value)
 {
-	chan->__do_not_use_readtrans = value;
+	chan->readtrans = value;
 }
 struct ast_trans_pvt *ast_channel_writetrans(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_writetrans;
+	return chan->writetrans;
 }
 void ast_channel_writetrans_set(struct ast_channel *chan, struct ast_trans_pvt *value)
 {
-	chan->__do_not_use_writetrans = value;
+	chan->writetrans = value;
 }
 const struct ast_channel_tech *ast_channel_tech(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_tech;
+	return chan->tech;
 }
 void ast_channel_tech_set(struct ast_channel *chan, const struct ast_channel_tech *value)
 {
-	chan->__do_not_use_tech = value;
+	chan->tech = value;
 }
 enum ast_channel_adsicpe ast_channel_adsicpe(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_adsicpe;
+	return chan->adsicpe;
 }
 void ast_channel_adsicpe_set(struct ast_channel *chan, enum ast_channel_adsicpe value)
 {
-	chan->__do_not_use_adsicpe = value;
+	chan->adsicpe = value;
 }
 enum ast_channel_state ast_channel_state(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_state;
+	return chan->state;
 }
 void ast_channel_state_set(struct ast_channel *chan, enum ast_channel_state value)
 {
-	chan->__do_not_use_state = value;
+	chan->state = value;
 }
 struct ast_format *ast_channel_oldwriteformat(struct ast_channel *chan)
 {
-	return &chan->__do_not_use_oldwriteformat;
+	return &chan->oldwriteformat;
 }
 struct ast_format *ast_channel_rawreadformat(struct ast_channel *chan)
 {
-	return &chan->__do_not_use_rawreadformat;
+	return &chan->rawreadformat;
 }
 struct ast_format *ast_channel_rawwriteformat(struct ast_channel *chan)
 {
-	return &chan->__do_not_use_rawwriteformat;
+	return &chan->rawwriteformat;
 }
 struct ast_format *ast_channel_readformat(struct ast_channel *chan)
 {
-	return &chan->__do_not_use_readformat;
+	return &chan->readformat;
 }
 struct ast_format *ast_channel_writeformat(struct ast_channel *chan)
 {
-	return &chan->__do_not_use_writeformat;
+	return &chan->writeformat;
 }
 struct ast_datastore_list *ast_channel_datastores(struct ast_channel *chan)
 {
-	return &chan->__do_not_use_datastores;
+	return &chan->datastores;
 }
 struct ast_autochan_list *ast_channel_autochans(struct ast_channel *chan)
 {
-	return &chan->__do_not_use_autochans;
+	return &chan->autochans;
 }
 struct ast_readq_list *ast_channel_readq(struct ast_channel *chan)
 {
-	return &chan->__do_not_use_readq;
+	return &chan->readq;
 }
 struct ast_frame *ast_channel_dtmff(struct ast_channel *chan)
 {
-	return &chan->__do_not_use_dtmff;
+	return &chan->dtmff;
 }
 struct ast_jb *ast_channel_jb(struct ast_channel *chan)
 {
-	return &chan->__do_not_use_jb;
+	return &chan->jb;
 }
 struct ast_party_caller *ast_channel_caller(struct ast_channel *chan)
 {
-	return &chan->__do_not_use_caller;
+	return &chan->caller;
 }
 struct ast_party_connected_line *ast_channel_connected(struct ast_channel *chan)
 {
-	return &chan->__do_not_use_connected;
+	return &chan->connected;
 }
 struct ast_party_dialed *ast_channel_dialed(struct ast_channel *chan)
 {
-	return &chan->__do_not_use_dialed;
+	return &chan->dialed;
 }
 struct ast_party_redirecting *ast_channel_redirecting(struct ast_channel *chan)
 {
-	return &chan->__do_not_use_redirecting;
+	return &chan->redirecting;
 }
 struct timeval *ast_channel_dtmf_tv(struct ast_channel *chan)
 {
-	return &chan->__do_not_use_dtmf_tv;
+	return &chan->dtmf_tv;
 }
 struct timeval *ast_channel_whentohangup(struct ast_channel *chan)
 {
-	return &chan->__do_not_use_whentohangup;
+	return &chan->whentohangup;
 }
 struct varshead *ast_channel_varshead(struct ast_channel *chan)
 {
-	return &chan->__do_not_use_varshead;
+	return &chan->varshead;
 }
 void ast_channel_dtmff_set(struct ast_channel *chan, struct ast_frame *value)
 {
-	memcpy(&chan->__do_not_use_dtmff, value, sizeof(chan->__do_not_use_dtmff));
+	chan->dtmff = *value;
 }
 void ast_channel_jb_set(struct ast_channel *chan, struct ast_jb *value)
 {
-	memcpy(&chan->__do_not_use_jb, value, sizeof(chan->__do_not_use_jb));
+	chan->jb = *value;
 }
 void ast_channel_caller_set(struct ast_channel *chan, struct ast_party_caller *value)
 {
-	memcpy(&chan->__do_not_use_caller, value, sizeof(chan->__do_not_use_caller));
+	chan->caller = *value;
 }
 void ast_channel_connected_set(struct ast_channel *chan, struct ast_party_connected_line *value)
 {
-	memcpy(&chan->__do_not_use_connected, value, sizeof(chan->__do_not_use_connected));
+	chan->connected = *value;
 }
 void ast_channel_dialed_set(struct ast_channel *chan, struct ast_party_dialed *value)
 {
-	memcpy(&chan->__do_not_use_dialed, value, sizeof(chan->__do_not_use_dialed));
+	chan->dialed = *value;
 }
 void ast_channel_redirecting_set(struct ast_channel *chan, struct ast_party_redirecting *value)
 {
-	memcpy(&chan->__do_not_use_redirecting, value, sizeof(chan->__do_not_use_redirecting));
+	chan->redirecting = *value;
 }
 void ast_channel_dtmf_tv_set(struct ast_channel *chan, struct timeval *value)
 {
-	memcpy(&chan->__do_not_use_dtmf_tv, value, sizeof(chan->__do_not_use_dtmf_tv));
+	chan->dtmf_tv = *value;
 }
 void ast_channel_whentohangup_set(struct ast_channel *chan, struct timeval *value)
 {
-	memcpy(&chan->__do_not_use_whentohangup, value, sizeof(chan->__do_not_use_whentohangup));
+	chan->whentohangup = *value;
 }
 void ast_channel_varshead_set(struct ast_channel *chan, struct varshead *value)
 {
-	memcpy(&chan->__do_not_use_varshead, value, sizeof(chan->__do_not_use_varshead));
+	chan->varshead = *value;
 }
 
 /* Evil softhangup accessors */
-int ast_channel_softhangup_internal_flag(struct ast_channel * chan)
+int ast_channel_softhangup_internal_flag(struct ast_channel *chan)
 {
-	return chan->__do_not_use_softhangup;
+	return chan->softhangup;
 }
 void ast_channel_softhangup_internal_flag_set(struct ast_channel *chan, int value)
 {
-	chan->__do_not_use_softhangup = value;
+	chan->softhangup = value;
 }
 void ast_channel_softhangup_internal_flag_add(struct ast_channel *chan, int value)
 {
-	chan->__do_not_use_softhangup |= value;
+	chan->softhangup |= value;
 }
 void ast_channel_softhangup_internal_flag_clear(struct ast_channel *chan, int value)
 {
-	chan ->__do_not_use_softhangup &= ~value;
+	chan ->softhangup &= ~value;
 }
 
 /* Typedef accessors */
 ast_group_t ast_channel_callgroup(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_callgroup;
+	return chan->callgroup;
 }
 void ast_channel_callgroup_set(struct ast_channel *chan, ast_group_t value)
 {
-	chan->__do_not_use_callgroup = value;
+	chan->callgroup = value;
 }
 ast_group_t ast_channel_pickupgroup(const struct ast_channel *chan)
 {
-	return chan->__do_not_use_pickupgroup;
+	return chan->pickupgroup;
 }
 void ast_channel_pickupgroup_set(struct ast_channel *chan, ast_group_t value)
 {
-	chan->__do_not_use_pickupgroup = value;
+	chan->pickupgroup = value;
 }
 
 /* Alertpipe functions */
 int ast_channel_alert_write(struct ast_channel *chan)
 {
 	char blah = 0x7F;
-	return ast_channel_alert_writable(chan) && write(chan->__do_not_use_alertpipe[1], &blah, sizeof(blah)) != sizeof(blah);
+	return ast_channel_alert_writable(chan) && write(chan->alertpipe[1], &blah, sizeof(blah)) != sizeof(blah);
 }
 
 ast_alert_status_t ast_channel_internal_alert_read(struct ast_channel *chan)
@@ -844,17 +990,17 @@ ast_alert_status_t ast_channel_internal_alert_read(struct ast_channel *chan)
 		return AST_ALERT_NOT_READABLE;
 	}
 
-	flags = fcntl(chan->__do_not_use_alertpipe[0], F_GETFL);
+	flags = fcntl(chan->alertpipe[0], F_GETFL);
 	/* For some odd reason, the alertpipe occasionally loses nonblocking status,
 	 * which immediately causes a deadlock scenario.  Detect and prevent this. */
 	if ((flags & O_NONBLOCK) == 0) {
 		ast_log(LOG_ERROR, "Alertpipe on channel %s lost O_NONBLOCK?!!\n", ast_channel_name(chan));
-		if (fcntl(chan->__do_not_use_alertpipe[0], F_SETFL, flags | O_NONBLOCK) < 0) {
+		if (fcntl(chan->alertpipe[0], F_SETFL, flags | O_NONBLOCK) < 0) {
 			ast_log(LOG_WARNING, "Unable to set alertpipe nonblocking! (%d: %s)\n", errno, strerror(errno));
 			return AST_ALERT_READ_FATAL;
 		}
 	}
-	if (read(chan->__do_not_use_alertpipe[0], &blah, sizeof(blah)) < 0) {
+	if (read(chan->alertpipe[0], &blah, sizeof(blah)) < 0) {
 		if (errno != EINTR && errno != EAGAIN) {
 			ast_log(LOG_WARNING, "read() failed: %s\n", strerror(errno));
 			return AST_ALERT_READ_FAIL;
@@ -866,42 +1012,42 @@ ast_alert_status_t ast_channel_internal_alert_read(struct ast_channel *chan)
 
 int ast_channel_alert_writable(struct ast_channel *chan)
 {
-	return chan->__do_not_use_alertpipe[1] > -1;
+	return chan->alertpipe[1] > -1;
 }
 
 int ast_channel_internal_alert_readable(struct ast_channel *chan)
 {
-	return chan->__do_not_use_alertpipe[0] > -1;
+	return chan->alertpipe[0] > -1;
 }
 
 void ast_channel_internal_alertpipe_clear(struct ast_channel *chan)
 {
-	chan->__do_not_use_alertpipe[0] = chan->__do_not_use_alertpipe[1] = -1;
+	chan->alertpipe[0] = chan->alertpipe[1] = -1;
 }
 
 void ast_channel_internal_alertpipe_close(struct ast_channel *chan)
 {
 	if (ast_channel_internal_alert_readable(chan)) {
-		close(chan->__do_not_use_alertpipe[0]);
+		close(chan->alertpipe[0]);
 	}
 	if (ast_channel_alert_writable(chan)) {
-		close(chan->__do_not_use_alertpipe[1]);
+		close(chan->alertpipe[1]);
 	}
 }
 
 int ast_channel_internal_alertpipe_init(struct ast_channel *chan)
 {
-	if (pipe(chan->__do_not_use_alertpipe)) {
+	if (pipe(chan->alertpipe)) {
 		ast_log(LOG_WARNING, "Channel allocation failed: Can't create alert pipe! Try increasing max file descriptors with ulimit -n\n");
 		return -1;
 	} else {
-		int flags = fcntl(chan->__do_not_use_alertpipe[0], F_GETFL);
-		if (fcntl(chan->__do_not_use_alertpipe[0], F_SETFL, flags | O_NONBLOCK) < 0) {
+		int flags = fcntl(chan->alertpipe[0], F_GETFL);
+		if (fcntl(chan->alertpipe[0], F_SETFL, flags | O_NONBLOCK) < 0) {
 			ast_log(LOG_WARNING, "Channel allocation failed: Unable to set alertpipe nonblocking! (%d: %s)\n", errno, strerror(errno));
 			return -1;
 		}
-		flags = fcntl(chan->__do_not_use_alertpipe[1], F_GETFL);
-		if (fcntl(chan->__do_not_use_alertpipe[1], F_SETFL, flags | O_NONBLOCK) < 0) {
+		flags = fcntl(chan->alertpipe[1], F_GETFL);
+		if (fcntl(chan->alertpipe[1], F_SETFL, flags | O_NONBLOCK) < 0) {
 			ast_log(LOG_WARNING, "Channel allocation failed: Unable to set alertpipe nonblocking! (%d: %s)\n", errno, strerror(errno));
 			return -1;
 		}
@@ -911,21 +1057,21 @@ int ast_channel_internal_alertpipe_init(struct ast_channel *chan)
 
 int ast_channel_internal_alert_readfd(struct ast_channel *chan)
 {
-	return chan->__do_not_use_alertpipe[0];
+	return chan->alertpipe[0];
 }
 
 void ast_channel_internal_alertpipe_swap(struct ast_channel *chan1, struct ast_channel *chan2)
 {
 	int i;
-	for (i = 0; i < ARRAY_LEN(chan1->__do_not_use_alertpipe); i++) {
-		SWAP(chan1->__do_not_use_alertpipe[i], chan2->__do_not_use_alertpipe[i]);
+	for (i = 0; i < ARRAY_LEN(chan1->alertpipe); i++) {
+		SWAP(chan1->alertpipe[i], chan2->alertpipe[i]);
 	}
 }
 
 /* file descriptor array accessors */
 void ast_channel_internal_fd_set(struct ast_channel *chan, int which, int value)
 {
-	chan->__do_not_use_fds[which] = value;
+	chan->fds[which] = value;
 }
 void ast_channel_internal_fd_clear(struct ast_channel *chan, int which)
 {
@@ -940,7 +1086,7 @@ void ast_channel_internal_fd_clear_all(struct ast_channel *chan)
 }
 int ast_channel_fd(const struct ast_channel *chan, int which)
 {
-	return chan->__do_not_use_fds[which];
+	return chan->fds[which];
 }
 int ast_channel_fd_isset(const struct ast_channel *chan, int which)
 {
@@ -950,10 +1096,86 @@ int ast_channel_fd_isset(const struct ast_channel *chan, int which)
 #ifdef HAVE_EPOLL
 struct ast_epoll_data *ast_channel_internal_epfd_data(const struct ast_channel *chan, int which)
 {
-	return chan->__do_not_use_epfd_data[which];
+	return chan->epfd_data[which];
 }
 void ast_channel_internal_epfd_data_set(struct ast_channel *chan, int which , struct ast_epoll_data *value)
 {
-	chan->__do_not_use_epfd_data[which] = value;
+	chan->epfd_data[which] = value;
 }
 #endif
+
+pthread_t ast_channel_blocker(const struct ast_channel *chan)
+{
+	return chan->blocker;
+}
+void ast_channel_blocker_set(struct ast_channel *chan, pthread_t value)
+{
+	chan->blocker = value;
+}
+
+ast_timing_func_t ast_channel_timingfunc(const struct ast_channel *chan)
+{
+	return chan->timingfunc;
+}
+void ast_channel_timingfunc_set(struct ast_channel *chan, ast_timing_func_t value)
+{
+	chan->timingfunc = value;
+}
+
+struct ast_bridge *ast_channel_internal_bridge(const struct ast_channel *chan)
+{
+	return chan->bridge;
+}
+void ast_channel_internal_bridge_set(struct ast_channel *chan, struct ast_bridge *value)
+{
+	chan->bridge = value;
+}
+
+struct ast_channel *ast_channel_internal_bridged_channel(const struct ast_channel *chan)
+{
+	return chan->bridged_channel;
+}
+void ast_channel_internal_bridged_channel_set(struct ast_channel *chan, struct ast_channel *value)
+{
+	chan->bridged_channel = value;
+}
+
+struct ast_flags *ast_channel_flags(struct ast_channel *chan)
+{
+	return &chan->flags;
+}
+
+struct ast_channel *__ast_channel_internal_alloc(void (*destructor)(void *obj), const char *file, int line, const char *function)
+{
+	struct ast_channel *tmp;
+#if defined(REF_DEBUG)
+	tmp = __ao2_alloc_debug(sizeof(*tmp), destructor,
+		AO2_ALLOC_OPT_LOCK_MUTEX, "", file, line, function, 1);
+#elif defined(__AST_DEBUG_MALLOC)
+	tmp = __ao2_alloc_debug(sizeof(*tmp), destructor,
+		AO2_ALLOC_OPT_LOCK_MUTEX, "", file, line, function, 0);
+#else
+	tmp = ao2_alloc(sizeof(*tmp), destructor);
+#endif
+
+	if ((ast_string_field_init(tmp, 128))) {
+		return ast_channel_unref(tmp);
+	}
+
+	return tmp;
+}
+
+void ast_channel_internal_cleanup(struct ast_channel *chan)
+{
+	ast_string_field_free_memory(chan);
+}
+
+void ast_channel_internal_finalize(struct ast_channel *chan)
+{
+	chan->finalized = 1;
+}
+
+int ast_channel_internal_is_finalized(struct ast_channel *chan)
+{
+	return chan->finalized;
+}
diff --git a/main/cli.c b/main/cli.c
index 591f6d556a..2480949272 100644
--- a/main/cli.c
+++ b/main/cli.c
@@ -1494,10 +1494,10 @@ static char *handle_showchan(struct ast_cli_entry *e, int cmd, struct ast_cli_ar
 		ast_channel_fin(c) & ~DEBUGCHAN_FLAG, (ast_channel_fin(c) & DEBUGCHAN_FLAG) ? " (DEBUGGED)" : "",
 		ast_channel_fout(c) & ~DEBUGCHAN_FLAG, (ast_channel_fout(c) & DEBUGCHAN_FLAG) ? " (DEBUGGED)" : "",
 		(long)ast_channel_whentohangup(c)->tv_sec,
-		cdrtime, c->_bridge ? ast_channel_name(c->_bridge) : "<none>", ast_bridged_channel(c) ? ast_channel_name(ast_bridged_channel(c)) : "<none>", 
+		cdrtime, ast_channel_internal_bridged_channel(c) ? ast_channel_name(ast_channel_internal_bridged_channel(c)) : "<none>", ast_bridged_channel(c) ? ast_channel_name(ast_bridged_channel(c)) : "<none>", 
 		ast_channel_context(c), ast_channel_exten(c), ast_channel_priority(c), ast_channel_callgroup(c), ast_channel_pickupgroup(c), (ast_channel_appl(c) ? ast_channel_appl(c) : "(N/A)" ),
 		(ast_channel_data(c) ? S_OR(ast_channel_data(c), "(Empty)") : "(None)"),
-		(ast_test_flag(c, AST_FLAG_BLOCKING) ? ast_channel_blockproc(c) : "(Not Blocking)"));
+		(ast_test_flag(ast_channel_flags(c), AST_FLAG_BLOCKING) ? ast_channel_blockproc(c) : "(Not Blocking)"));
 	
 	if (pbx_builtin_serialize_variables(c, &obuf)) {
 		ast_str_append(&output, 0, "      Variables:\n%s\n", ast_str_buffer(obuf));
diff --git a/main/features.c b/main/features.c
index 03627ee385..7e8a978a0e 100644
--- a/main/features.c
+++ b/main/features.c
@@ -892,7 +892,7 @@ static void check_goto_on_transfer(struct ast_channel *chan)
 	}
 	ast_parseable_goto(xferchan, goto_on_transfer);
 	ast_channel_state_set(xferchan, AST_STATE_UP);
-	ast_clear_flag(xferchan, AST_FLAGS_ALL);	
+	ast_clear_flag(ast_channel_flags(xferchan), AST_FLAGS_ALL);	
 	ast_channel_clear_softhangup(xferchan, AST_SOFTHANGUP_ALL);
 
 	if (ast_do_masquerade(xferchan) || ast_pbx_start(xferchan)) {
@@ -1547,10 +1547,10 @@ static int park_call_full(struct ast_channel *chan, struct ast_channel *peer, st
 		 * parking space number do not continue playing it back.  This
 		 * is the case if an attended transfer occurs.
 		 */
-		ast_set_flag(peer, AST_FLAG_MASQ_NOSTREAM);
+		ast_set_flag(ast_channel_flags(peer), AST_FLAG_MASQ_NOSTREAM);
 		/* Tell the peer channel the number of the parking space */
 		ast_say_digits(peer, pu->parkingnum, "", ast_channel_language(peer));
-		ast_clear_flag(peer, AST_FLAG_MASQ_NOSTREAM);
+		ast_clear_flag(ast_channel_flags(peer), AST_FLAG_MASQ_NOSTREAM);
 	}
 	if (peer == chan) { /* pu->notquiteyet = 1 */
 		/* Wake up parking thread if we're really done */
@@ -2354,7 +2354,7 @@ static int builtin_blindtransfer(struct ast_channel *chan, struct ast_channel *p
 	} else {
 		/* Set the transferee's new extension, since it exists, using transferer context */
 		ast_debug(1, "About to explicit goto %s, it has a PBX.\n", ast_channel_name(transferee));
-		ast_set_flag(transferee, AST_FLAG_BRIDGE_HANGUP_DONT); /* don't let the after-bridge code run the h-exten */
+		ast_set_flag(ast_channel_flags(transferee), AST_FLAG_BRIDGE_HANGUP_DONT); /* don't let the after-bridge code run the h-exten */
 		set_c_e_p(transferee, transferer_real_context, xferto, 0);
 
 		/*
@@ -2586,13 +2586,13 @@ static int builtin_atxfer(struct ast_channel *chan, struct ast_channel *peer, st
 		/* ast_bridge_call clears AST_FLAG_BRIDGE_HANGUP_DONT, but we don't
 		   want that to happen here because we're also in another bridge already
 		 */
-		if (ast_test_flag(chan, AST_FLAG_BRIDGE_HANGUP_DONT)) {
+		if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_BRIDGE_HANGUP_DONT)) {
 			hangup_dont = 1;
 		}
 		/* Let party B and party C talk as long as they want. */
 		ast_bridge_call(transferer, newchan, &bconfig);
 		if (hangup_dont) {
-			ast_set_flag(chan, AST_FLAG_BRIDGE_HANGUP_DONT);
+			ast_set_flag(ast_channel_flags(chan), AST_FLAG_BRIDGE_HANGUP_DONT);
 		}
 
 		if (ast_check_hangup(newchan) || !ast_check_hangup(transferer)) {
@@ -2733,13 +2733,13 @@ static int builtin_atxfer(struct ast_channel *chan, struct ast_channel *peer, st
 	ast_channel_masquerade(xferchan, transferee);
 	ast_explicit_goto(xferchan, ast_channel_context(transferee), ast_channel_exten(transferee), ast_channel_priority(transferee));
 	ast_channel_state_set(xferchan, AST_STATE_UP);
-	ast_clear_flag(xferchan, AST_FLAGS_ALL);
+	ast_clear_flag(ast_channel_flags(xferchan), AST_FLAGS_ALL);
 
 	/* Do the masquerade manually to make sure that is is completed. */
 	ast_do_masquerade(xferchan);
 
 	ast_channel_state_set(newchan, AST_STATE_UP);
-	ast_clear_flag(newchan, AST_FLAGS_ALL);
+	ast_clear_flag(ast_channel_flags(newchan), AST_FLAGS_ALL);
 	tobj = ast_calloc(1, sizeof(*tobj));
 	if (!tobj) {
 		ast_hangup(xferchan);
@@ -3714,13 +3714,13 @@ void ast_channel_log(char *title, struct ast_channel *chan) /* for debug, this i
 		ast_channel_accountcode(chan), ast_channel_dialcontext(chan), ast_channel_amaflags(chan), ast_channel_macrocontext(chan), ast_channel_macroexten(chan), ast_channel_macropriority(chan));
 	ast_log(LOG_NOTICE, "CHAN: masq: %p;  masqr: %p; _bridge: %p; uniqueID: %s; linkedID:%s\n",
 		ast_channel_masq(chan), ast_channel_masqr(chan),
-		chan->_bridge, ast_channel_uniqueid(chan), ast_channel_linkedid(chan));
+		ast_channel_internal_bridged_channel(chan), ast_channel_uniqueid(chan), ast_channel_linkedid(chan));
 	if (ast_channel_masqr(chan)) {
 		ast_log(LOG_NOTICE, "CHAN: masquerading as: %s;  cdr: %p;\n",
 			ast_channel_name(ast_channel_masqr(chan)), ast_channel_cdr(ast_channel_masqr(chan)));
 	}
-	if (chan->_bridge) {
-		ast_log(LOG_NOTICE, "CHAN: Bridged to %s\n", ast_channel_name(chan->_bridge));
+	if (ast_channel_internal_bridged_channel(chan)) {
+		ast_log(LOG_NOTICE, "CHAN: Bridged to %s\n", ast_channel_name(ast_channel_internal_bridged_channel(chan)));
 	}
 
 	ast_log(LOG_NOTICE, "===== done ====\n");
@@ -4024,7 +4024,7 @@ int ast_bridge_call(struct ast_channel *chan, struct ast_channel *peer, struct a
 				ast_cdr_answer(chan_cdr); /* for the sake of cli status checks */
 			}
 		}
-		if (ast_test_flag(chan,AST_FLAG_BRIDGE_HANGUP_DONT) && (chan_cdr || peer_cdr)) {
+		if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_BRIDGE_HANGUP_DONT) && (chan_cdr || peer_cdr)) {
 			if (chan_cdr) {
 				ast_set_flag(chan_cdr, AST_CDR_FLAG_BRIDGED);
 			}
@@ -4051,8 +4051,8 @@ int ast_bridge_call(struct ast_channel *chan, struct ast_channel *peer, struct a
 	
 		res = ast_channel_bridge(chan, peer, config, &f, &who);
 
-		if (ast_test_flag(chan, AST_FLAG_ZOMBIE)
-			|| ast_test_flag(peer, AST_FLAG_ZOMBIE)) {
+		if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_ZOMBIE)
+			|| ast_test_flag(ast_channel_flags(peer), AST_FLAG_ZOMBIE)) {
 			/* Zombies are present time to leave! */
 			res = -1;
 			if (f) {
@@ -4122,7 +4122,7 @@ int ast_bridge_call(struct ast_channel *chan, struct ast_channel *peer, struct a
 			}
 		}
 		if (res < 0) {
-			if (!ast_test_flag(chan, AST_FLAG_ZOMBIE) && !ast_test_flag(peer, AST_FLAG_ZOMBIE) && !ast_check_hangup(chan) && !ast_check_hangup(peer)) {
+			if (!ast_test_flag(ast_channel_flags(chan), AST_FLAG_ZOMBIE) && !ast_test_flag(ast_channel_flags(peer), AST_FLAG_ZOMBIE) && !ast_check_hangup(chan) && !ast_check_hangup(peer)) {
 				ast_log(LOG_WARNING, "Bridge failed on channels %s and %s\n", ast_channel_name(chan), ast_channel_name(peer));
 			}
 			goto before_you_go;
@@ -4139,7 +4139,7 @@ int ast_bridge_call(struct ast_channel *chan, struct ast_channel *peer, struct a
 			 */
 			ast_channel_lock(chan);
 			if (ast_channel_softhangup_internal_flag(chan) & (AST_SOFTHANGUP_ASYNCGOTO | AST_SOFTHANGUP_UNBRIDGE)) {
-				ast_set_flag(chan, AST_FLAG_BRIDGE_HANGUP_DONT);
+				ast_set_flag(ast_channel_flags(chan), AST_FLAG_BRIDGE_HANGUP_DONT);
 			}
 			ast_channel_unlock(chan);
 			res = -1;
@@ -4300,8 +4300,8 @@ before_you_go:
 		silgen = NULL;
 	}
 
-	if (ast_test_flag(chan,AST_FLAG_BRIDGE_HANGUP_DONT)) {
-		ast_clear_flag(chan,AST_FLAG_BRIDGE_HANGUP_DONT); /* its job is done */
+	if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_BRIDGE_HANGUP_DONT)) {
+		ast_clear_flag(ast_channel_flags(chan), AST_FLAG_BRIDGE_HANGUP_DONT); /* its job is done */
 		if (bridge_cdr) {
 			ast_cdr_discard(bridge_cdr);
 			/* QUESTION: should we copy bridge_cdr fields to the peer before we throw it away? */
@@ -4345,8 +4345,8 @@ before_you_go:
 		 */
 		ast_softhangup(chan, AST_SOFTHANGUP_APPUNLOAD);
 
-		autoloopflag = ast_test_flag(chan, AST_FLAG_IN_AUTOLOOP);
-		ast_set_flag(chan, AST_FLAG_IN_AUTOLOOP);
+		autoloopflag = ast_test_flag(ast_channel_flags(chan), AST_FLAG_IN_AUTOLOOP);
+		ast_set_flag(ast_channel_flags(chan), AST_FLAG_IN_AUTOLOOP);
 		if (bridge_cdr && ast_opt_end_cdr_before_h_exten) {
 			ast_cdr_end(bridge_cdr);
 		}
@@ -4395,7 +4395,7 @@ before_you_go:
 			}
 		}
 		/* An "h" exten has been run, so indicate that one has been run. */
-		ast_set_flag(chan, AST_FLAG_BRIDGE_HANGUP_RUN);
+		ast_set_flag(ast_channel_flags(chan), AST_FLAG_BRIDGE_HANGUP_RUN);
 		ast_channel_unlock(chan);
 
 		/* protect the lastapp/lastdata against the effects of the hangup/dialplan code */
@@ -4403,7 +4403,7 @@ before_you_go:
 			ast_copy_string(bridge_cdr->lastapp, savelastapp, sizeof(bridge_cdr->lastapp));
 			ast_copy_string(bridge_cdr->lastdata, savelastdata, sizeof(bridge_cdr->lastdata));
 		}
-		ast_set2_flag(chan, autoloopflag, AST_FLAG_IN_AUTOLOOP);
+		ast_set2_flag(ast_channel_flags(chan), autoloopflag, AST_FLAG_IN_AUTOLOOP);
 	}
 	
 	/* obey the NoCDR() wishes. -- move the DISABLED flag to the bridge CDR if it was set on the channel during the bridge... */
@@ -4747,9 +4747,9 @@ static int manage_parked_call(struct parkeduser *pu, const struct pollfd *pfds,
 			}
 
 			if (pfds[y].revents & POLLPRI) {
-				ast_set_flag(chan, AST_FLAG_EXCEPTION);
+				ast_set_flag(ast_channel_flags(chan), AST_FLAG_EXCEPTION);
 			} else {
-				ast_clear_flag(chan, AST_FLAG_EXCEPTION);
+				ast_clear_flag(ast_channel_flags(chan), AST_FLAG_EXCEPTION);
 			}
 			ast_channel_fdno_set(chan, x);
 
@@ -7227,7 +7227,7 @@ static const struct ast_datastore_info pickup_active = {
 
 int ast_can_pickup(struct ast_channel *chan)
 {
-	if (!ast_channel_pbx(chan) && !ast_channel_masq(chan) && !ast_test_flag(chan, AST_FLAG_ZOMBIE)
+	if (!ast_channel_pbx(chan) && !ast_channel_masq(chan) && !ast_test_flag(ast_channel_flags(chan), AST_FLAG_ZOMBIE)
 		&& (ast_channel_state(chan) == AST_STATE_RINGING
 			|| ast_channel_state(chan) == AST_STATE_RING
 			/*
@@ -7353,7 +7353,7 @@ int ast_do_pickup(struct ast_channel *chan, struct ast_channel *target)
 	}
 	
 	/* setting this flag to generate a reason header in the cancel message to the ringing channel */
-	ast_set_flag(chan, AST_FLAG_ANSWERED_ELSEWHERE);
+	ast_set_flag(ast_channel_flags(chan), AST_FLAG_ANSWERED_ELSEWHERE);
 
 	if (ast_channel_masquerade(target, chan)) {
 		ast_log(LOG_WARNING, "Unable to masquerade '%s' into '%s'\n", chan_name,
diff --git a/main/file.c b/main/file.c
index 82f2aab86d..aaccb11feb 100644
--- a/main/file.c
+++ b/main/file.c
@@ -1040,7 +1040,7 @@ int ast_streamfile(struct ast_channel *chan, const char *filename, const char *p
 		ast_debug(1, "Ooh, found a video stream, too, format %s\n", ast_getformatname(&vfs->fmt->format));
 	}
 
-	if (ast_test_flag(chan, AST_FLAG_MASQ_NOSTREAM))
+	if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_MASQ_NOSTREAM))
 		fs->orig_chan_name = ast_strdup(ast_channel_name(chan));
 	if (ast_applystream(chan, fs))
 		return -1;
@@ -1252,9 +1252,9 @@ static int waitstream_core(struct ast_channel *c, const char *breakon,
 		reverse = "";
 
 	/* Switch the channel to end DTMF frame only. waitstream_core doesn't care about the start of DTMF. */
-	ast_set_flag(c, AST_FLAG_END_DTMF_ONLY);
+	ast_set_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
 
-	if (ast_test_flag(c, AST_FLAG_MASQ_NOSTREAM))
+	if (ast_test_flag(ast_channel_flags(c), AST_FLAG_MASQ_NOSTREAM))
 		orig_chan_name = ast_strdupa(ast_channel_name(c));
 
 	while (ast_channel_stream(c)) {
@@ -1269,7 +1269,7 @@ static int waitstream_core(struct ast_channel *c, const char *breakon,
 
 		ms = ast_sched_wait(ast_channel_sched(c));
 
-		if (ms < 0 && !c->timingfunc) {
+		if (ms < 0 && !ast_channel_timingfunc(c)) {
 			ast_stopstream(c);
 			break;
 		}
@@ -1279,7 +1279,7 @@ static int waitstream_core(struct ast_channel *c, const char *breakon,
 			res = ast_waitfor(c, ms);
 			if (res < 0) {
 				ast_log(LOG_WARNING, "Select failed (%s)\n", strerror(errno));
-				ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
+				ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
 				return res;
 			}
 		} else {
@@ -1290,11 +1290,11 @@ static int waitstream_core(struct ast_channel *c, const char *breakon,
 				if (errno == EINTR)
 					continue;
 				ast_log(LOG_WARNING, "Wait failed (%s)\n", strerror(errno));
-				ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
+				ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
 				return -1;
 			} else if (outfd > -1) { /* this requires cmdfd set */
 				/* The FD we were watching has something waiting */
-				ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
+				ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
 				return 1;
 			}
 			/* if rchan is set, it is 'c' */
@@ -1303,7 +1303,7 @@ static int waitstream_core(struct ast_channel *c, const char *breakon,
 		if (res > 0) {
 			struct ast_frame *fr = ast_read(c);
 			if (!fr) {
-				ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
+				ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
 				return -1;
 			}
 			switch (fr->frametype) {
@@ -1314,7 +1314,7 @@ static int waitstream_core(struct ast_channel *c, const char *breakon,
 						S_COR(ast_channel_caller(c)->id.number.valid, ast_channel_caller(c)->id.number.str, NULL))) {
 						res = fr->subclass.integer;
 						ast_frfree(fr);
-						ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
+						ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
 						return res;
 					}
 				} else {
@@ -1332,7 +1332,7 @@ static int waitstream_core(struct ast_channel *c, const char *breakon,
 						ast_stream_rewind(ast_channel_stream(c), skip_ms);
 					} else if (strchr(breakon, res)) {
 						ast_frfree(fr);
-						ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
+						ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
 						return res;
 					}					
 				}
@@ -1343,7 +1343,7 @@ static int waitstream_core(struct ast_channel *c, const char *breakon,
 				case AST_CONTROL_BUSY:
 				case AST_CONTROL_CONGESTION:
 					ast_frfree(fr);
-					ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
+					ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
 					return -1;
 				case AST_CONTROL_RINGING:
 				case AST_CONTROL_ANSWER:
@@ -1379,7 +1379,7 @@ static int waitstream_core(struct ast_channel *c, const char *breakon,
 		ast_sched_runq(ast_channel_sched(c));
 	}
 
-	ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
+	ast_clear_flag(ast_channel_flags(c), AST_FLAG_END_DTMF_ONLY);
 
 	return (err || ast_channel_softhangup_internal_flag(c)) ? -1 : 0;
 }
diff --git a/main/indications.c b/main/indications.c
index 20ce4b894b..c62a495c67 100644
--- a/main/indications.c
+++ b/main/indications.c
@@ -163,9 +163,9 @@ static void *playtones_alloc(struct ast_channel *chan, void *params)
 
 	/* Let interrupts interrupt :) */
 	if (pd->interruptible) {
-		ast_set_flag(chan, AST_FLAG_WRITE_INT);
+		ast_set_flag(ast_channel_flags(chan), AST_FLAG_WRITE_INT);
 	} else {
-		ast_clear_flag(chan, AST_FLAG_WRITE_INT);
+		ast_clear_flag(ast_channel_flags(chan), AST_FLAG_WRITE_INT);
 	}
 
 	return ps;
diff --git a/main/manager.c b/main/manager.c
index 482496dca1..a5e30b06c1 100644
--- a/main/manager.c
+++ b/main/manager.c
@@ -3321,8 +3321,8 @@ static int action_status(struct mansession *s, const struct message *m)
 		}
 
 		channels++;
-		if (c->_bridge) {
-			snprintf(bridge, sizeof(bridge), "BridgedChannel: %s\r\nBridgedUniqueid: %s\r\n", ast_channel_name(c->_bridge), ast_channel_uniqueid(c->_bridge));
+		if (ast_channel_internal_bridged_channel(c)) {
+			snprintf(bridge, sizeof(bridge), "BridgedChannel: %s\r\nBridgedUniqueid: %s\r\n", ast_channel_name(ast_channel_internal_bridged_channel(c)), ast_channel_uniqueid(ast_channel_internal_bridged_channel(c)));
 		} else {
 			bridge[0] = '\0';
 		}
@@ -3502,7 +3502,7 @@ static int action_redirect(struct mansession *s, const struct message *m)
 
 	if (ast_channel_pbx(chan)) {
 		ast_channel_lock(chan);
-		ast_set_flag(chan, AST_FLAG_BRIDGE_HANGUP_DONT); /* don't let the after-bridge code run the h-exten */
+		ast_set_flag(ast_channel_flags(chan), AST_FLAG_BRIDGE_HANGUP_DONT); /* don't let the after-bridge code run the h-exten */
 		ast_channel_unlock(chan);
 	}
 
@@ -3512,7 +3512,7 @@ static int action_redirect(struct mansession *s, const struct message *m)
 			if (chan2) {
 				if (ast_channel_pbx(chan2)) {
 					ast_channel_lock(chan2);
-					ast_set_flag(chan2, AST_FLAG_BRIDGE_HANGUP_DONT); /* don't let the after-bridge code run the h-exten */
+					ast_set_flag(ast_channel_flags(chan2), AST_FLAG_BRIDGE_HANGUP_DONT); /* don't let the after-bridge code run the h-exten */
 					ast_channel_unlock(chan2);
 				}
 				if (!ast_strlen_zero(context2)) {
diff --git a/main/pbx.c b/main/pbx.c
index d848fc3b61..221e5173f8 100644
--- a/main/pbx.c
+++ b/main/pbx.c
@@ -5119,8 +5119,8 @@ static enum ast_pbx_result __ast_pbx_run(struct ast_channel *c,
 	ast_channel_pbx(c)->rtimeoutms = 10000;
 	ast_channel_pbx(c)->dtimeoutms = 5000;
 
-	autoloopflag = ast_test_flag(c, AST_FLAG_IN_AUTOLOOP);	/* save value to restore at the end */
-	ast_set_flag(c, AST_FLAG_IN_AUTOLOOP);
+	autoloopflag = ast_test_flag(ast_channel_flags(c), AST_FLAG_IN_AUTOLOOP);	/* save value to restore at the end */
+	ast_set_flag(ast_channel_flags(c), AST_FLAG_IN_AUTOLOOP);
 
 	if (ast_strlen_zero(ast_channel_exten(c))) {
 		/* If not successful fall back to 's' - but only if there is no given exten  */
@@ -5370,7 +5370,7 @@ static enum ast_pbx_result __ast_pbx_run(struct ast_channel *c,
 	}
 
 	if ((!args || !args->no_hangup_chan)
-		&& !ast_test_flag(c, AST_FLAG_BRIDGE_HANGUP_RUN)
+		&& !ast_test_flag(ast_channel_flags(c), AST_FLAG_BRIDGE_HANGUP_RUN)
 		&& ast_exists_extension(c, ast_channel_context(c), "h", 1,
 			S_COR(ast_channel_caller(c)->id.number.valid, ast_channel_caller(c)->id.number.str, NULL))) {
 		set_ext_pri(c, "h", 1);
@@ -5388,8 +5388,8 @@ static enum ast_pbx_result __ast_pbx_run(struct ast_channel *c,
 			ast_verb(2, "Spawn extension (%s, %s, %d) exited non-zero on '%s'\n", ast_channel_context(c), ast_channel_exten(c), ast_channel_priority(c), ast_channel_name(c));
 		}
 	}
-	ast_set2_flag(c, autoloopflag, AST_FLAG_IN_AUTOLOOP);
-	ast_clear_flag(c, AST_FLAG_BRIDGE_HANGUP_RUN); /* from one round to the next, make sure this gets cleared */
+	ast_set2_flag(ast_channel_flags(c), autoloopflag, AST_FLAG_IN_AUTOLOOP);
+	ast_clear_flag(ast_channel_flags(c), AST_FLAG_BRIDGE_HANGUP_RUN); /* from one round to the next, make sure this gets cleared */
 	pbx_destroy(ast_channel_pbx(c));
 	ast_channel_pbx_set(c, NULL);
 
@@ -8302,7 +8302,7 @@ int ast_explicit_goto(struct ast_channel *chan, const char *context, const char
 	if (priority > -1) {
 		ast_channel_priority_set(chan, priority);
 		/* see flag description in channel.h for explanation */
-		if (ast_test_flag(chan, AST_FLAG_IN_AUTOLOOP)) {
+		if (ast_test_flag(ast_channel_flags(chan), AST_FLAG_IN_AUTOLOOP)) {
 			ast_channel_priority_set(chan, ast_channel_priority(chan) - 1);
 		}
 	}
@@ -9977,7 +9977,7 @@ static int pbx_builtin_background(struct ast_channel *chan, const char *data)
 	 * users can EXEC Background and reasonably expect that the DTMF code will
 	 * be returned (see #16434).
 	 */
-	if (!ast_test_flag(chan, AST_FLAG_DISABLE_WORKAROUNDS)
+	if (!ast_test_flag(ast_channel_flags(chan), AST_FLAG_DISABLE_WORKAROUNDS)
 		&& (exten[0] = res)
 		&& ast_canmatch_extension(chan, args.context, exten, 1,
 			S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL))
diff --git a/main/rtp_engine.c b/main/rtp_engine.c
index e739c7014a..fc3118d31e 100644
--- a/main/rtp_engine.c
+++ b/main/rtp_engine.c
@@ -1245,7 +1245,7 @@ static enum ast_bridge_result remote_bridge_loop(struct ast_channel *c0,
 		cs[1] = cs[2];
 	}
 
-	if (ast_test_flag(c0, AST_FLAG_ZOMBIE)) {
+	if (ast_test_flag(ast_channel_flags(c0), AST_FLAG_ZOMBIE)) {
 		ast_debug(1, "Channel '%s' Zombie cleardown from bridge\n", ast_channel_name(c0));
 	} else if (ast_channel_tech_pvt(c0) != pvt0) {
 		ast_debug(1, "Channel c0->'%s' pvt changed, in bridge with c1->'%s'\n", ast_channel_name(c0), ast_channel_name(c1));
@@ -1254,7 +1254,7 @@ static enum ast_bridge_result remote_bridge_loop(struct ast_channel *c0,
 	} else if (glue0->update_peer(c0, NULL, NULL, NULL, 0, 0)) {
 		ast_log(LOG_WARNING, "Channel '%s' failed to break RTP bridge\n", ast_channel_name(c0));
 	}
-	if (ast_test_flag(c1, AST_FLAG_ZOMBIE)) {
+	if (ast_test_flag(ast_channel_flags(c1), AST_FLAG_ZOMBIE)) {
 		ast_debug(1, "Channel '%s' Zombie cleardown from bridge\n", ast_channel_name(c1));
 	} else if (ast_channel_tech_pvt(c1) != pvt1) {
 		ast_debug(1, "Channel c1->'%s' pvt changed, in bridge with c0->'%s'\n", ast_channel_name(c1), ast_channel_name(c0));
diff --git a/res/res_agi.c b/res/res_agi.c
index acac4c89ac..1a5ff7fbf2 100644
--- a/res/res_agi.c
+++ b/res/res_agi.c
@@ -2496,8 +2496,8 @@ static int handle_exec(struct ast_channel *chan, AGI *agi, int argc, const char
 	ast_verb(3, "AGI Script Executing Application: (%s) Options: (%s)\n", argv[1], argc >= 3 ? argv[2] : "");
 
 	if ((app_to_exec = pbx_findapp(argv[1]))) {
-		if (!(workaround = ast_test_flag(chan, AST_FLAG_DISABLE_WORKAROUNDS))) {
-			ast_set_flag(chan, AST_FLAG_DISABLE_WORKAROUNDS);
+		if (!(workaround = ast_test_flag(ast_channel_flags(chan), AST_FLAG_DISABLE_WORKAROUNDS))) {
+			ast_set_flag(ast_channel_flags(chan), AST_FLAG_DISABLE_WORKAROUNDS);
 		}
 		if (ast_compat_res_agi && argc >= 3 && !ast_strlen_zero(argv[2])) {
 			char *compat = alloca(strlen(argv[2]) * 2 + 1), *cptr;
@@ -2518,7 +2518,7 @@ static int handle_exec(struct ast_channel *chan, AGI *agi, int argc, const char
 			res = pbx_exec(chan, app_to_exec, argc == 2 ? "" : argv[2]);
 		}
 		if (!workaround) {
-			ast_clear_flag(chan, AST_FLAG_DISABLE_WORKAROUNDS);
+			ast_clear_flag(ast_channel_flags(chan), AST_FLAG_DISABLE_WORKAROUNDS);
 		}
 	} else {
 		ast_log(LOG_WARNING, "Could not find application (%s)\n", argv[1]);
@@ -3008,7 +3008,7 @@ static int handle_speechrecognize(struct ast_channel *chan, AGI *agi, int argc,
 		switch (speech->state) {
 		case AST_SPEECH_STATE_READY:
 			/* If the stream is done, start timeout calculation */
-			if ((timeout > 0) && start == 0 && ((!ast_channel_stream(chan)) || (ast_channel_streamid(chan) == -1 && chan->timingfunc == NULL))) {
+			if ((timeout > 0) && start == 0 && ((!ast_channel_stream(chan)) || (ast_channel_streamid(chan) == -1 && ast_channel_timingfunc(chan) == NULL))) {
 				ast_stopstream(chan);
 				time(&start);
 			}
@@ -3018,7 +3018,7 @@ static int handle_speechrecognize(struct ast_channel *chan, AGI *agi, int argc,
 			break;
 		case AST_SPEECH_STATE_WAIT:
 			/* Cue waiting sound if not already playing */
-			if ((!ast_channel_stream(chan)) || (ast_channel_streamid(chan) == -1 && chan->timingfunc == NULL)) {
+			if ((!ast_channel_stream(chan)) || (ast_channel_streamid(chan) == -1 && ast_channel_timingfunc(chan) == NULL)) {
 				ast_stopstream(chan);
 				/* If a processing sound exists, or is not none - play it */
 				if (!ast_strlen_zero(speech->processing_sound) && strcasecmp(speech->processing_sound, "none"))
diff --git a/res/res_musiconhold.c b/res/res_musiconhold.c
index 37d3478099..639c3b05f7 100644
--- a/res/res_musiconhold.c
+++ b/res/res_musiconhold.c
@@ -1562,7 +1562,7 @@ static int local_ast_moh_start(struct ast_channel *chan, const char *mclass, con
 		ast_channel_name(chan), ast_channel_uniqueid(chan),
 		mohclass->name);
 
-	ast_set_flag(chan, AST_FLAG_MOH);
+	ast_set_flag(ast_channel_flags(chan), AST_FLAG_MOH);
 
 	if (mohclass->total_files) {
 		res = ast_activate_generator(chan, &moh_file_stream, mohclass);
@@ -1577,7 +1577,7 @@ static int local_ast_moh_start(struct ast_channel *chan, const char *mclass, con
 
 static void local_ast_moh_stop(struct ast_channel *chan)
 {
-	ast_clear_flag(chan, AST_FLAG_MOH);
+	ast_clear_flag(ast_channel_flags(chan), AST_FLAG_MOH);
 	ast_deactivate_generator(chan);
 
 	ast_channel_lock(chan);
diff --git a/res/snmp/agent.c b/res/snmp/agent.c
index 9989ae17e2..3cc630471f 100644
--- a/res/snmp/agent.c
+++ b/res/snmp/agent.c
@@ -503,10 +503,10 @@ static u_char *ast_var_channels_table(struct variable *vp, oid *name, size_t *le
 	case ASTCHANFLAGS:
 		bits_ret[0] = 0;
 		for (bit = 0; bit < 8; bit++)
-			bits_ret[0] |= ((chan->flags & (1 << bit)) >> bit) << (7 - bit);
+			bits_ret[0] |= ((ast_channel_flags(chan)->flags & (1 << bit)) >> bit) << (7 - bit);
 		bits_ret[1] = 0;
 		for (bit = 0; bit < 8; bit++)
-			bits_ret[1] |= (((chan->flags >> 8) & (1 << bit)) >> bit) << (7 - bit);
+			bits_ret[1] |= (((ast_channel_flags(chan)->flags >> 8) & (1 << bit)) >> bit) << (7 - bit);
 		*var_len = 2;
 		ret = bits_ret;
 		break;