Hi! I have a phone (Mitel 6930) that does not send an Expire-header but "expire" in Contact during REGISTER:
Session Initiation Protocol (REGISTER) > Request-Line: REGISTER sip:pbx.example.com SIP/2.0 > Message Header > Via: SIP/2.0/TLS 192.168.6.16:5061;branch=xxxxxxxxxxxxxxxx;rport > Route: <sip:pbx.example.com;lr=lr;transport=tls> > Max-Forwards: 70 > From: "Example" <sip:121212_6...@pbx.example.com>;tag=b0cec92c3e > To: "Example" <sip:121212_6...@pbx.example.com> > Call-ID: aaaaaaaaaaaaaaaaa > CSeq: 1190442896 REGISTER > Accept-Language: de > Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, OPTIONS, UPDATE, > PRACK, SUBSCRIBE, INFO, PUBLISH > Allow-Events: talk, hold, conference, LocalModeStatus > Contact: "Example" <sip:121212_6666@192.0.2.1:62336 > >;+sip.instance="<urn:uuid:00000000-0000-1000-8000-08000FB888F5>";expires=300 > Supported: path, gruu > User-Agent: Mitel 6930/5.0.0.2041 > Aastra-Line: 1 > Aastra-Mac: AAAAAAAAAAAA > Content-Length: 0 This results in successful register, kamailio forwards REGISTER to asterisk (endpoint registered) and immediatly kamailio sends a new REGISTER with Expire set to 0 to asterisk: Session Initiation Protocol (REGISTER) > Request-Line: REGISTER sip:192.168.99.112:5060 SIP/2.0 > Message Header > Via: SIP/2.0/UDP 192.168.99.111:5060 > ;branch=z9hG4bK9f9e.599cf243000000000000000000000000.0 > To: <sip:121212_6666@192.168.99.112> > From: <sip:121212_6666@192.168.99.112 > >;tag=7e4f6993bfbf831f6b016fea6683cdca-b98a > CSeq: 10 REGISTER > Call-ID: 2bc5fd1061b31723-1350@192.168.99.111 > Max-Forwards: 70 > Content-Length: 0 > User-Agent: kamailio (5.1.6 (x86_64/linux)) > Contact: <sip:121212_6666@192.168.99.111:5060> > Expires: 0 The phone is then unregistered - the phone also shows "no service". It looks like Kamailio generates this message on it's own (and I don't know why). I am still learning to implement kamailio as proxy. Reading the docs, I would expect Kamailio to automatically eval the correct parameter: > If the processed message contains neither Expires HFs nor expires contact > parameters, this value will be used for newly created usrloc records. [1] What did I miss? Phones which use the Expire-header are working fine. Kind regards Kevin [1] default_expires - http://www.kamailio.org/docs/modules/5.2.x/modules/registrar.html
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