Unknow MSN codec (SIP x-msrta/16000) ?

Mattia.m78

Guest

Hy to all!
I need your help.. I’m studying how to decode the rtp traffic
made by MSN Live Messanger during an audio call.

In the SIP negotiation it expose a codec (then used in rtp streaming)
named x-msrta/16000 (bitrate=12000). What is it?
How can I decode those frames?
If possibile, could be a solution also a wave file with the right WAVEFORMATEX initialization, but I’m not able to detect the codec used.

Really need your help.
Thanks to all,
Mattia.

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Joined: 19 Dec 2006
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hi ,i also have this problem.can you help me ?
lb_1223@hotmail.com