[Serusers] BYE Message Problem

[Darren Sessions]

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: 'serusers at lists.iptel.org'
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 at 22.22.222.154>;tag=bc5a80577e3d5642
To: <sip:8644679887 at 33.33.333.157>;tag=322BCA98-25A3
Call-ID: F429FDCE-30B011D8-BA0EDB9C-52307829 at 33.33.333.157
CSeq: 101 BYE
Contact: <sip:8644679887 at 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 at 44.44.444.148:5060
out_uri=sip:8644679887 at 44.44.444.148:5060 via_cnt==0"


Any ideas?

Thanks,

 - Darren