[Serusers] BYE Message Problem

We also have a problem with BYE's not being sent from an on-net call (sipura to sipura). -----Original Message----- From: Darren Sessions Sent: Thursday, December 18, 2003 2:32 PM To: &#39;serusers(a)lists.iptel.org&#39; Subject: RE: Serusers Digest, Vol 8, Issue 16 Importance: High Situation: Endpoint is called Party (Sipura SPA2000) Calling Party is routed through from a TDM call and VoIP'd by Cisco 3640 router then sent to SER. Endpoint receives call - everything works. When the Sipura hangs up the call, it sends a BYE to ser - but ser does not send the BYE to the router to disconnect the TDM channel. All other situations result in a completed call with channels released on the router just fine. After further inspection - we noticed that when the Sipura hangs up and send the BYE to SER, SER responds with this: SIP/2.0 481 Call/Transaction Does Not Exist Via: SIP/2.0/UDP 11.11.111.155:5060;branch=z9hG4bK-b76fe29f From: <sip:8646783182@22.22.222.154>;tag=bc5a80577e3d5642 To: <sip:8644679887@33.33.333.157>;tag=322BCA98-25A3 Call-ID: F429FDCE-30B011D8-BA0EDB9C-52307829(a)33.33.333.157 CSeq: 101 BYE Contact: <sip:8644679887@44.44.444.148> Server: Sip EXpress router (0.8.12 (i386/linux)) Content-Length: 0 Warning: 392 44.44.444.148:5060 "Noisy feedback tells: pid=20033 req_src_ip=22.22.222.154 req_src_port=5060 in_uri=sip:8644679887@44.44.444.148:5060 out_uri=sip:8644679887@44.44.444.148:5060 via_cnt==0" Any ideas? Thanks, - Darren