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

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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. reply



hi ,i also have this problem.can you help me ?
lb_1223@hotmail.com reply

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You can try to use pcap2wav application, it is a part of Xplico project reply

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