On Mon, 2008-09-29 at 11:26 -0400, Tony Wyland wrote: > I have heard from others having similar issue with Dialogic. A transfer via > the AA does work; the only failure is when the phone rings and then attempts > to go to voice mail due to no answer. > > I didn't have a chance to do a trace on the SipX side yet as suggested by > Scott but I do have a packet trace showing the gateway doing a SIP BYE right > after the OK from SipX. Attached is also a text graph done by Wireshark on > this call.
That trace shows two 180 responses - the first is from a phone, and the second from the voicemail system (note that they have different values for the 'tag' parameter on the To headers). These each create different early dialogs, and provide different SDP - perfectly normal and legal. The SDP in the 200 from the voicemail system matches what it sent in its 180, which is correct. It does look as though the Dialogic is unhappy, since it sends the BYE less than 2ms after the ACK. I suggest you get logs from the gateway and try to figure out what it objects to. If its problem is that the SDP in the two ringing responses are different (or, put another way - that the SDP in the 200 does not match that in the first 180), then that's a bug in the Dialogic stack. _______________________________________________ sipx-users mailing list sipx-users@list.sipfoundry.org List Archive: http://list.sipfoundry.org/archive/sipx-users Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-users
