Index: apps/app_queue.c
===================================================================
--- apps/app_queue.c	(revision 295023)
+++ apps/app_queue.c	(working copy)
@@ -1031,6 +1031,7 @@
 
 static void update_realtime_members(struct call_queue *q);
 static int set_member_paused(const char *queuename, const char *interface, const char *reason, int paused);
+static void rna(int rnatime, struct queue_ent *qe, char *interface, char *membername, int pause, int reason);
 
 static void queue_transfer_fixup(void *data, struct ast_channel *old_chan, struct ast_channel *new_chan); 
 /*! \brief sets the QUEUESTATUS channel variable */
@@ -2883,6 +2884,7 @@
 	/* Request the peer */
 	tmp->chan = ast_request(tech, qe->chan->nativeformats, qe->chan, location, &status);
 	if (!tmp->chan) {			/* If we can't, just go on to the next call */
+		rna(0, qe, tmp->member->state_interface, tmp->member->membername, 0, AST_CAUSE_CONGESTION);
 		if (qe->chan->cdr)
 			ast_cdr_busy(qe->chan->cdr);
 		tmp->stillgoing = 0;	
@@ -2966,6 +2968,7 @@
 	/* Place the call, but don't wait on the answer */
 	if ((res = ast_call(tmp->chan, location, 0))) {
 		/* Again, keep going even if there's an error */
+		rna(0, qe, tmp->member->state_interface, tmp->member->membername, 0, AST_CAUSE_CONGESTION);
 		ast_debug(1, "ast call on peer returned %d\n", res);
 		ast_verb(3, "Couldn't call %s\n", tmp->interface);
 		ast_channel_unlock(tmp->chan);
@@ -3188,7 +3191,7 @@
 }
 
 /*! \brief RNA == Ring No Answer. Common code that is executed when we try a queue member and they don't answer. */
-static void rna(int rnatime, struct queue_ent *qe, char *interface, char *membername, int pause)
+static void rna(int rnatime, struct queue_ent *qe, char *interface, char *membername, int pause, int reason)
 {
 	ast_verb(3, "Nobody picked up in %d ms\n", rnatime);
 
@@ -3208,6 +3211,7 @@
 						"Member: %s\r\n"
 						"MemberName: %s\r\n"
 						"Ringtime: %d\r\n"
+						"Reason: %s\r\n"
 						"%s",
 						qe->parent->name,
 						qe->chan->uniqueid,
@@ -3215,9 +3219,10 @@
 						interface,
 						membername,
 						rnatime,
+						ast_cause2str(reason),
 						qe->parent->eventwhencalled == QUEUE_EVENT_VARIABLES ? vars2manager(qe->chan, vars, sizeof(vars)) : "");
 	}
-	ast_queue_log(qe->parent->name, qe->chan->uniqueid, membername, "RINGNOANSWER", "%d", rnatime);
+	ast_queue_log(qe->parent->name, qe->chan->uniqueid, membername, "RINGNOANSWER", "%d|%s", rnatime, ast_cause2str(reason));
 	if (qe->parent->autopause != QUEUE_AUTOPAUSE_OFF && pause) {
 		if (qe->parent->autopause == QUEUE_AUTOPAUSE_ON) {
 			if (!set_member_paused(qe->parent->name, interface, "Auto-Pause", 1)) {
@@ -3514,7 +3519,7 @@
 							do_hang(o);
 							endtime = (long) time(NULL);
 							endtime -= starttime;
-							rna(endtime * 1000, qe, on, membername, 0);
+							rna(endtime * 1000, qe, on, membername, 0, o->chan->hangupcause);
 							if (qe->parent->strategy != QUEUE_STRATEGY_RINGALL) {
 								if (qe->parent->timeoutrestart)
 									*to = orig;
@@ -3532,7 +3537,7 @@
 								ast_cdr_busy(in->cdr);
 							endtime = (long) time(NULL);
 							endtime -= starttime;
-							rna(endtime * 1000, qe, on, membername, 0);
+							rna(endtime * 1000, qe, on, membername, 0, o->chan->hangupcause);
 							do_hang(o);
 							if (qe->parent->strategy != QUEUE_STRATEGY_RINGALL) {
 								if (qe->parent->timeoutrestart)
@@ -3602,7 +3607,7 @@
 					ast_frfree(f);
 				} else { /* ast_read() returned NULL */
 					endtime = (long) time(NULL) - starttime;
-					rna(endtime * 1000, qe, on, membername, 1);
+					rna(endtime * 1000, qe, on, membername, 1, o->chan->hangupcause);
 					do_hang(o);
 					if (qe->parent->strategy != QUEUE_STRATEGY_RINGALL) {
 						if (qe->parent->timeoutrestart)
@@ -3647,7 +3652,7 @@
 		}
 		if (!*to) {
 			for (o = start; o; o = o->call_next)
-				rna(orig, qe, o->interface, o->member->membername, 1);
+				rna(orig, qe, o->interface, o->member->membername, 1, AST_CAUSE_NOANSWER);
 		}
 	}
 
Index: UPGRADE.txt
===================================================================
--- UPGRADE.txt	(revision 295023)
+++ UPGRADE.txt	(working copy)
@@ -30,6 +30,12 @@
  - The default value for 'context' and 'parkinglots' in gtalk.conf has
    been changed to 'default', previously they were empty.
 
+QueueLog:
+ - RINGNOANSWER now has the hangup reason as the last parameter.
 
+Manager:
+ - Manager event AgentRingNoAnswer now includes "Reason"-
+   parameter, which holds the hangup reason.
+
 ===========================================================
 ===========================================================