El Miércoles, 4 de Noviembre de 2009, olivier.taylor@gmail.com escribió:
maybe this can help?
U xxx.xxx.123.83:5060 -> yyy.yyy.67.183:5060 BYE sip:997321079@yyy.yyy.67.183:5060 SIP/2.0. Record-Route: sip:xxx.xxx.123.83;ftag=as5f0cc351;lr=on. Via: SIP/2.0/UDP xxx.xxx.123.83;branch=z9hG4bKa922.9ab28507.0. Via: SIP/2.0/UDP xxx.xxx.123.88:5060;branch=z9hG4bK04f04c65;rport=5060. Route: sip:yyy.yyy.67.183;lr=on;ftag=5713;my_param=AAAAAAAAAAAAAAAACgBUWFxPXVpFWh hVSzE4Mw--. From: sip:0485336302@yyy.yyy.67.183;tag=as5f0cc351. To: "997321079" sip:997321073@finalcut.be;tag=5713. Contact: sip:0485336302@xxx.xxx.123.88. Call-ID: 1257324832-1991-MacBook%20de%20Olivier%20Taylor@192.168.2.125. CSeq: 102 BYE. User-Agent: Phonext B2Bua. Max-Forwards: 16. Content-Length: 0. .
# U yyy.yyy.67.183:5060 -> xxx.xxx.123.83:5060 SIP/2.0 477 Send failed (477/TM). Via: SIP/2.0/UDP xxx.xxx.123.83;branch=z9hG4bKa922.9ab28507.0. Via: SIP/2.0/UDP xxx.xxx.123.88:5060;branch=z9hG4bK04f04c65;rport=5060. From: sip:0485336302@yyy.yyy.67.183;tag=as5f0cc351. To: "997321079" sip:997321073@finalcut.be;tag=5713. Call-ID: 1257324832-1991-MacBook%20de%20Olivier%20Taylor@192.168.2.125. CSeq: 102 BYE. Server: Kamailio (1.5.3-notls (i386/linux)). Content-Length: 0.
As the BYE has a Route header different than the proxy receiving it, it means that it's not removed and the proxy routes the BYE there:
Route: sip:yyy.yyy.67.183;lr=on;ftag=5713...
but obviously something fails when trying to send the request to that IP yyy.yyy.67.183 ¿?