fixed some echocandisable issues when bridged. this caused a kernel panic sometimes..also some minor formatting fixes

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@45020 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_misdn.c

@@ -2287,7 +2287,6 @@ enum ast_bridge_result  misdn_bridge (struct ast_channel *c0,
 	carr[0]=c0;
 	carr[1]=c1;
   
-  
 	if (ch1 && ch2 ) ;
 	else
 		return -1;
@@ -2309,10 +2308,9 @@ enum ast_bridge_result  misdn_bridge (struct ast_channel *c0,
 			ch2->bc->ec_enable=0;
 			manager_ec_disable(ch2->bc); 
 		}
-		
 		/* trying to make a mISDN_dsp conference */
 		chan_misdn_log(1, ch1->bc->port, "I SEND: Making conference with Number:%d\n", ch1->bc->pid +1);
-		
+
 		misdn_lib_bridge(ch1->bc,ch2->bc);
 	}
 	
@@ -2358,7 +2356,11 @@ enum ast_bridge_result  misdn_bridge (struct ast_channel *c0,
 			break;
 		}
 		
-		
+		if (f->frametype == AST_FRAME_VOICE) {
+			chan_misdn_log(1,0,"Got Voice frame in Bridged state..\n");
+			continue;
+		}
+
 		if (who == c0) {
 			ast_write(c1,f);
 		}

channels/misdn/isdn_lib.c

@@ -4231,7 +4231,7 @@ void manager_ec_disable(struct misdn_bchannel *bc)
 		return;
 	}
 
-	if ( bc->ec_enable) {
+	if ( ! bc->ec_enable) {
 		cb_log(1, stack?stack->port:0, "Sending Control ECHOCAN_OFF\n");
 		manager_ph_control(bc,  ECHOCAN_OFF, 0);
 	}