Merged revisions 65075 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.2

........
r65075 | oej | 2007-05-18 17:12:09 +0200 (Fri, 18 May 2007) | 5 lines

Issue 9235 - part of the problem, maybe not all. Please retry with this patch (and no
other patch) if you have problems with hanging SIP channels. Thank you.

A special Thank You to WeBRainstorm that gave me access to his system.

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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@65076 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -11921,10 +11921,15 @@ static void handle_response_invite(struct sip_pvt *p, int resp, char *rest, stru
 			This transaction is already scheduled to be killed by sip_hangup().
 		*/
 		xmitres = transmit_request(p, SIP_ACK, seqno, XMIT_UNRELIABLE, FALSE);
-		if (p->owner && !ast_test_flag(req, SIP_PKT_IGNORE))
+		if (p->owner && !ast_test_flag(req, SIP_PKT_IGNORE)) {
 			ast_queue_hangup(p->owner);
-		else if (!ast_test_flag(req, SIP_PKT_IGNORE))
+			append_history(p, "Hangup", "Got 487 on CANCEL request from us. Queued AST hangup request");
+ 		} else if (!ast_test_flag(req, SIP_PKT_IGNORE)) {
 			update_call_counter(p, DEC_CALL_LIMIT);
+			append_history(p, "Hangup", "Got 487 on CANCEL request from us on call without owner. Killing this dialog.");
+			ast_set_flag(&p->flags[0], SIP_NEEDDESTROY);	
+			sip_alreadygone(p);
+		}
 		break;
 	case 488: /* Not acceptable here */
 		xmitres = transmit_request(p, SIP_ACK, seqno, XMIT_UNRELIABLE, FALSE);