Re: [Kamailio-Users] HOWTO rewrite to: header

Olle E. Johansson wrote: Yes, but as I understand it, "This solution uses the UPDATE method for the request, or in some circumstances the re-INVITE method." This is not the same as simply rewriting the To URI on request processing at the proxy, which is what the poster is asking about. Or am I missing something? Conveying the dialed number via overriding the user part of the contact binding is an accepted and mainstream way of sending DNIS to the registrant UAC among providers of SIP origination, although I agree that ignoring the Contact URI provided in the client's REGISTER request is very much not RFC compliant, much like far-end NAT traversal techniques. :) It's kind of a nasty situation, actually, because some endpoints will gladly accept an incoming Request URI that differs from the Contact URI with which it registered, such as Asterisk. But other devices, like various ATAs and phones, irrevocably expect the user part of the Request URI to match up 100% with what was submitted, and will simply reject the call (404 Not Found) if that's the case. For the SIP registrar implementations I've done, I've usually had to give the customer a flag to toggle that controls whether this override behaviour is done. It is set depending on what kind of device is the endpoint. -- Alex -- Alex Balashov Evariste Systems Web : http://www.evaristesys.com/ Tel : (+1) (678) 954-0670 Direct : (+1) (678) 954-0671