Index: channels/chan_sip.c
===================================================================
--- channels/chan_sip.c	(revision 254800)
+++ channels/chan_sip.c	(working copy)
@@ -2047,6 +2047,13 @@
 			}
 		}
 	}
+	else if(pkt->owner->pendinginvite == pkt->seqno)
+	{
+		ast_log(LOG_WARNING, "Timeout on %s on non-critical invite transaction.\n", pkt->owner->callid);
+		pkt->owner->invitestate = INV_TERMINATED;
+		pkt->owner->pendinginvite = 0;
+		check_pendings(pkt->owner);
+	}
 
 	if (pkt->method == SIP_BYE) {
 		/* We're not getting answers on SIP BYE's.  Tear down the call anyway. */