Are you using newest Asterisk versions? There were some similar problems fixed recently: https://issues.asterisk.org/view.php?id=13849 https://issues.asterisk.org/view.php?id=14239 https://issues.asterisk.org/view.php?id=14584
regards klaus Guillén Melo, Joaquin schrieb: > Hi, im trying to build a UAC and I'm coming up with some trouble > whenever I receive a SIP 491 Request Pending Response. This happens > because I try to place a call on hold using an Invite request rigth > before Asterisk sends me a Re-Invite for the same call. I respond to the > 491 response with an ACK however for some strange reason Asterisk > doesn't accept the ACK and insists on retransmitting the 491 Response. > Asterisk replies with the following 491 response: > > SIP/2.0 491 Request Pending > Via: SIP/2.0/UDP > 10.110.7.89:5070;branch=z9hG4bK5a668c33f196837c3602266b23b389e0;received=10.110.7.89 > > > From: <sip:30...@10.110.7.20:5070>;tag=SIPTester > To: <sip:30...@10.110.7.20>;tag=as2ea72122 > Call-ID: 0dd43bb5a64eb5a2fb0114193821f...@10.110.7.89 > CSeq: 5 INVITE > User-Agent: Asterisk PBX > Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY > Supported: replaces > Content-Length: 0 > X-Asterisk-HangupCause: Normal > > > > And I send the following ACK: > > > > ACK sip:30...@10.110.7.20 SIP/2.0 > Call-ID: 0dd43bb5a64eb5a2fb0114193821f...@10.110.7.89 > Max-Forwards: 70 > From: <sip:30...@10.110.7.20:5070>;tag=SIPTester > To: <sip:30...@10.110.7.20>;tag=as2ea72122 > Via: SIP/2.0/UDP > 10.110.7.89:5070;branch=z9hG4bK5a668c33f196837c3602266b23b389e0 > CSeq: 5 ACK > Content-Length: 0 > > However this doesn't seem to be valid because Asterisk insists be > resending the same 491 Response until it sends 6 messages and the > decides to destroy the dialog: > > Aug 21 11:21:06 <http://www.voip-info.org/boards/Aug%2021%2011:21:06> > WARNING9686 <http://www.voip-info.org/boards/9686>: chan_sip.c:1967 > retrans_pkt: Maximum retries exceeded on transmission > 0dd43bb5a64eb5a2fb0114193821f...@10.110.7.89 for seqno 5 (Critical > Response) — See doc/sip-retransmit.txt. > Aug 21 11:21:06 <http://www.voip-info.org/boards/Aug%2021%2011:21:06> > WARNING9686 <http://www.voip-info.org/boards/9686>: chan_sip.c:1989 > retrans_pkt: Hanging up call > 0dd43bb5a64eb5a2fb0114193821f...@10.110.7.89 - no reply to our critical > packet (see doc/sip-retransmit.txt). > > Does anyone have a clue of what it is I'm doing wrong? Do I have to send > a CANCEL request of the hold's INVITE? > > Thanks in advance! > > > > **Joaquín ** > > > > > ------------------------------------------------------------------------ > > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > AstriCon 2009 - October 13 - 15 Phoenix, Arizona > Register Now: http://www.astricon.net > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2009 - October 13 - 15 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users