Re: [Partysip-dev] well, huh.. it doesn't work!

[Aymeric Moizard]

A proxy add a via in request that it forwards and remove one
via in responses that it forward!

You should read the SIP specification :)
Aymeric

On Mon, 1 Jul 2002, Razvan Cosma wrote:

> On Sun, 30 Jun 2002, Aymeric Moizard wrote:
>
> >
> > partysip does not recognized the answer because it does not contains
> > a Via header that have been inserted by partysip in the INVITE forwarded.
> >
> > This means that the remote party you are calling is not a compliant
> > SIP user agent! (not even with the rfc2543 nor with the latest SIP
> > draft.)
> >
>  Well, you are somehow right, but the problem is there are TWO VIA:
> fields in the packets!
>  Here's how it looks with another registrar, don't know what software
> they use :( (clients are .3 and .4, server is .1)
>
> SIP/2.0 180 RINGING
> Via: SIP/2.0/UDP 10.0.0.3
> Call-ID: address@hidden
> From: <sip:address@hidden>;tag=5077cab7
> To: "b" <sip:address@hidden>;tag=50608bfc
> Warning: 0
> CSeq: 2 INVITE
> Content-Length: 0
> User-Agent: MyPhone
>
> SIP/2.0 200 OK
> Via: SIP/2.0/UDP 10.0.0.3
> Call-ID: address@hidden
> From: <sip:address@hidden>;tag=5077cab7
> To: "b" <sip:address@hidden>;tag=50608bfc
> Warning: 0
> CSeq: 2 INVITE
> Content-Type: application/sdp
> Content-Length: 154
> Contact: <sip:address@hidden>
> User-Agent: MyPhone
>
> v=0
> o=MyPhone 1348196714 1348196714 IN IP4 10.0.0.4
> s=SIP call
> c=IN IP4 10.0.0.4
> t=0 0
> m=audio 30002 RTP/AVP 3
> a=rtpmap:3 GSM/8000
> ACK sip:address@hidden;user=phone SIP/2.0
> Via: SIP/2.0/UDP 10.0.0.3;branch=z9hG4bKnp1350757961-42299af510.0.0.3
> From: "a" <sip:address@hidden>;tag=5077cab7
> To: <sip:address@hidden>;tag=50608bfc
> Call-ID: address@hidden
> CSeq: 2 ACK
> Date: Mon, 01 Jul 2002 11:27:28 GMT
> Content-Length: 0
> Contact: <sip:address@hidden>
> User-Agent: MyPhone
>
> ... and the call goes on OK. But with partysip:
>
> SIP/2.0 180 RINGING
> Via: SIP/2.0/UDP 10.0.0.1
> Via: SIP/2.0/UDP 10.0.0.3
> ^^^^^^ this seems to be the problem...
>
>
>
>
>
>
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