Fix feature_attended_transfer test

The feature_attended_transfer test is failing due to Asterisk not
passing DTMF in the bridges created for internal attended transfers.
This sets the features initialization routine to set this flag by
default and adjusts the basic bridge and confbridge's use of the
bridging system accordingly as per Richard's suggestion instead of
adjusting this individual case. This change allows the necessary DTMF
to pass through the attended transfer bridge and complete the test
successfully.

Review: https://reviewboard.asterisk.org/r/2759/
(closes issue ASTERISK-22222)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@396724 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_confbridge.c

@@ -1587,6 +1587,8 @@ static int confbridge_exec(struct ast_channel *chan, const char *data)
 	/* Set if DTMF should pass through for this user or not */
 	if (ast_test_flag(&user.u_profile, USER_OPT_DTMF_PASS)) {
 		user.features.dtmf_passthrough = 1;
+	} else {
+		user.features.dtmf_passthrough = 0;
 	}
 
 	/* Set dsp threshold values if present */

main/bridge.c

@@ -3204,6 +3204,8 @@ int ast_bridge_features_init(struct ast_bridge_features *features)
 		return -1;
 	}
 
+	features->dtmf_passthrough = 1;
+
 	return 0;
 }
 

main/features.c

@@ -797,9 +797,6 @@ int ast_bridge_channel_setup_features(struct ast_bridge_channel *bridge_channel)
 {
 	int res = 0;
 
-	/* Always pass through any DTMF digits. */
-	bridge_channel->features->dtmf_passthrough = 1;
-
 	res |= setup_bridge_features_builtin(bridge_channel->features, bridge_channel->chan);
 	res |= setup_bridge_features_dynamic(bridge_channel->features, bridge_channel->chan);