[SR-Users] IMS and SIP over WebSocket 500/Error

Carsten Bock carsten at ng-voice.com
Tue Apr 1 12:08:21 CEST 2014

Hi Olivier,

i will update the configuration files for WebSockets at the P-CSCF
after KamailioWorld. The week after KamailioWorld, we are at another
congress, but probably around easter, you should find a proper
configuration for WebSocket on the P-CSCF (including media).

Kind regards,

2014-04-01 12:02 GMT+02:00 DURECU, OLIVIER (OLIVIER)
<olivier.durecu at alcatel-lucent.com>:
> Hello all,
> I have installed Kamailio 4.1.2 in IMS configuration (3 Kamailio instances
> to run in P/I/S-CSCF modes)
> Everything works fine with Native IMS clients (Boghe)
> I want now to introduce Web clients using WebSockets. I have added to the
> P-CSCF Kamailio.cfg the websockets parts
> Registration is Ok but I can't manage placing a call.
> With SIPoWS, the contact header is sip:olivier at 132.invalid. So when the
> P-CSCF receives a terminating INVITE, its destination URI is
> sip:olivier at 132.invalid , it tries to make a DNS resolution of 312.invalid
> and it doesn't forward to the client saying the domain is unknown and can't
> be routed
> I guess that something is missing in my configuration around
> aliases/nathelper/outbound but didn't find what...
> Thanks for any help
> Olivier DURECU
> Bell Labs / IP Platform Research
> Villarceaux Center
> Tel: +33(0) 130772759
> GSM: +33(0) 683776482
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Carsten Bock
CEO (Geschäftsführer)

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