Thanks Alastair for your reply.

I have already tried modifying 200OK response from gateway in following
ways..but I still get the same error.

m=audio 50140 RTP/AVP 112
a=rtpmap:112 speex/32000
a=fmtp:112 vbr=on

m=audio 50140 RTP/AVP 111
a=rtpmap:111 speex/16000
a=fmtp:111 vbr=on

m=audio 50140 RTP/AVP 110
a=rtpmap:110 speex/8000
a=fmtp:110 vbr=on

m=audio 50140 RTP/AVP 101
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-11


Do you see any problem in these responses or any other cause?


Thanks !!
Yatin



On Fri, Jul 6, 2012 at 3:15 AM, Alastair Johnson
<[email protected]>wrote:

> The response is missing the a=rtpmap line that would tell linphone what
> payload the gateway means when it says 112.
>
> On Thursday 05 July 2012 17:46:23 Yatin Patil wrote:
> > Hello,
> >
> > I am trying to make Linphone work with a VLC server through the gateway
> > which translates messages between SIP and RTSP. Eventually I want to
> > listen/view video streamed by a VLC server on Linphone client. Linphone,
> > gateway and VLC are running on the same machine.
> > But, I am getting error regarding 'No codec intersection'. Looking at the
> > Linphone debug log, it details error as 'error: Incompatible SDP offer
> > received in 200Ok, need to abort the call'.
> >
> > This is an initial INVITE message from Linphone:
> >
> ----------------------------------------------------------------------------
> > ---------------------------------- INVITE
> sip:[email protected]:33000
> > SIP/2.0
> > Via: SIP/2.0/UDP 192.168.111.215:5060;rport;branch=z9hG4bK247713395
> > From: <sip:[email protected]>;tag=1981465341
> > To: <sip:[email protected]:33000>
> > Call-ID: 230194435
> > CSeq: 20 INVITE
> > Contact: <sip:[email protected]>
> > Content-Type: application/sdp
> > Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE,
> > SUBSCRIBE, INFO
> > Max-Forwards: 70
> > User-Agent: Linphone/3.4.3 (eXosip2/3.3.0)
> > Subject: Phone call
> > Content-Length:   320
> >
> > v=0
> > o=yatin 446 446 IN IP4 192.168.111.215
> > s=Talk
> > c=IN IP4 192.168.111.215
> > t=0 0
> > m=audio 7078 RTP/AVP 112 111 110 0 0 3 0 8 101
> > a=rtpmap:112 speex/32000
> > a=fmtp:112 vbr=on
> > a=rtpmap:111 speex/16000
> > a=fmtp:111 vbr=on
> > a=rtpmap:110 speex/8000
> > a=fmtp:110 vbr=on
> > a=rtpmap:101 telephone-event/8000
> > a=fmtp:101 0-11
> >
> ----------------------------------------------------------------------------
> > ----------------------------------
> >
> >
> > This is a 200 OK response from the gateway
> >
> ----------------------------------------------------------------------------
> > ---------------------------------- SIP/2.0 200 OK
> > Via: SIP/2.0/UDP 192.168.111.215:5060;rport;branch=z9hG4bK247713395
> > From: <sip:[email protected]>;tag=1981465341
> > To: <sip:[email protected]:33000>;tag=random
> > Call-ID: 230194435
> > Contact: <sip:[email protected]:33000>
> > CSeq: 20 INVITE
> > Max-Forward: 70
> > Content-Type: application/sdp
> > Content-Length: 111
> >
> > v=0
> > o=yatin 446 446 IN IP4 192.168.111.215
> > s=Talk
> > c=IN IP4 192.168.111.215
> > t=0 0
> > m=audio 50140 RTP/AVP 112
> >
> ----------------------------------------------------------------------------
> > ----------------------------------
> >
> > Can anybody please help me with debugging of this issue.
> >
> > Thanks !!
> > Yatin
> --
> -------------------------------------------------------
> Alastair Johnson
> SolutionTrax Technologies - http://www.solutiontrax.com
> T: 01908 268902   F: 0709 2117048
>
> _______________________________________________
> Linphone-users mailing list
> [email protected]
> https://lists.nongnu.org/mailman/listinfo/linphone-users
>
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