--- asterisk-1.4.9.orig/channels/chan_iax2.c	2007-07-24 12:32:20.000000000 -0400
+++ asterisk-1.4.9/channels/chan_iax2.c	2007-08-01 16:29:37.000000000 -0400
@@ -5938,9 +5938,10 @@
 	AST_LIST_TRAVERSE(&iaxq.queue, f, list) {
 		/* Send a copy immediately */
 		if ((f->callno == callno) && iaxs[f->callno] &&
-			((unsigned char ) (f->oseqno - last) < 128)) {
-			send_packet(f);
-		}
+			((unsigned char ) (f->oseqno - last) < 128) &&
+			(f->retries >= 0) &&
+			(f->dcallno == iaxs[f->callno]->peercallno))
+				send_packet(f);
 	}
 	AST_LIST_UNLOCK(&iaxq.queue);
 }