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Unknow RTP version 0


kelvin
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hi guys,

 

i am try to integrate pbxnsip with OCS 2007 R2. i have no problem making outgoing calls from OCS to pbxnsip but i receiving "unknow RTP version 0" return error in RTP packet from OCS when receiving incoming calls from pbxnsip. the phone will ring for few ring then drop call.

 

i am using pbxnsip version 3.4.0.3201(win32) and OCS 2007 R2

 

below is the wireshark packet captured.

 

3 2009-08-25 20:07:35.838839 202.168.66.202 202.79.201.86 RTP Unknown RTP version 0

Real-Time Transport Protocol

00.. .... = Version: Old VAT Version (0)

 

Any advice on this is truly appreciated. Thank you!

 

Regards,

 

Kelvin

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