[SIPForum-discussion] Finall what codec they are using..

[B. Dasu]

It's depend on the codec's.. Assume sdp2 is G711 and sdp3 is g723 then definitely call will fail and for make it the call success, you must require transcoder..
Suppose If its like g.729 annexure Where both end sending different flavor of G.729 then there is the possibility the call is success as RTP stream is taking payload 8 Kbps only and this is also depend on the product/license .. Like sdp2 is g.729 annexb=no then it will negotiate with same flavor only as per Rfc3261/3550..

Thanks 
B Dasu

Sent from my iPhone

On Dec 11, 2012, at 7:45 AM, Raees Shaikh <captainraees at gmail.com> wrote:

> I would think it should either allocate a transcoder or the call should fail
> 
> Regards 
> Raees
> 
> On Dec 10, 2012 3:51 AM, "vijay kant gupta" <vijaykant.it2002 at gmail.com> wrote:
>        
> Hi Can any body suggest Finally Call setp with which Common SDP. .
> Or it need correction.. last 200 Ok should contain Sdp3.
> 
> 
>              A              Controller               B
>              |(1) INVITE bh sdp1 |                   |
>              |<------------------|                   |
>              |(2) 200 sdp2       |                   |
>              |------------------>|                   |
>              |                   |(3) INVITE sdp2    |
>              |                   |------------------>|
>              |(4) ACK            |                   |
>              |<------------------|                   |
>              |                   |(5) 200 OK sdp3    |
>              |                   |<------------------|
>              |                   |(6) ACK            |
>              |                   |------------------>|
>              |(7) INVITE sdp3    |                   |
>              |<------------------|                   |
>              |(8) 200 OK sdp2    |                   |
>              |------------------>|                   |
>              |(9) ACK            |                   |
>              |<------------------|                   |
>              |(10) RTP           |                   |
>              |.......................................|
> 
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