Index: apps/app_dial.c
===================================================================
--- apps/app_dial.c	(revision 97698)
+++ apps/app_dial.c	(working copy)
@@ -691,6 +691,8 @@
 					break;
 				case AST_CONTROL_RINGING:
 					ast_verb(3, "%s is ringing\n", c->name);
+					/* call is ringing, eventual hangup in this state is likely to be a NO ANSWER */
+					winner->hangupcause = AST_CAUSE_NO_ANSWER;
 					/* Setup early media if appropriate */
 					if (single && CAN_EARLY_BRIDGE(peerflags))
 						ast_channel_early_bridge(in, c);
Index: main/channel.c
===================================================================
--- main/channel.c	(revision 97698)
+++ main/channel.c	(working copy)
@@ -3028,6 +3028,7 @@
 	int cause = 0;
 	struct ast_channel *chan;
 	int res = 0;
+	int last_subclass = 0;
 	
 	if (outstate)
 		*outstate = 0;
@@ -3111,6 +3112,7 @@
 				default:
 					ast_log(LOG_NOTICE, "Don't know what to do with control frame %d\n", f->subclass);
 				}
+				last_subclass = f->subclass;
 			}
 			ast_frfree(f);
 		}
@@ -3129,6 +3131,8 @@
 		*outstate = AST_CONTROL_ANSWER;
 
 	if (res <= 0) {
+		if ( AST_CONTROL_RINGING == last_subclass ) 
+			chan->hangupcause = AST_CAUSE_NO_ANSWER;
 		if (!chan->cdr && (chan->cdr = ast_cdr_alloc()))
 			ast_cdr_init(chan->cdr, chan);
 		if (chan->cdr) {