I was reading in some discussion for rfc-2833, that: ( My test client is a 3CX-Softphone, i have enabled RFC -2833 and Inband DTMF on this softphone) Suppose from below mentioned media attributes in the SDP, i can tell that telephony event 101 is being sent to handle dtmf tones, but i dont know if its inband dtmf or outband dtmf: I am able to see from telephony event 101 fields that the dtmf is being passed properly, but i am not able to see if that dtmf was passed in-band or out-band. I want to check in-band and out-band dtmf (rfc-2833) in sip traces.
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