On Mon, 2009-03-30 at 11:45 -0400, Kathleen Eccles wrote:
> This problem occurs on sipXbridge when sipx voicemail gets an sdp offer
> that does not contain:
> a=rtpmap:<fmt-#> telephone-event/8000
> 
> This prevents the ivr client from processing DTMF keypresses.
> 
> The agreed solution is to add the "missing" payload format to the sdp
> answer.  This change is in the call stack code which is used for several
> sipx servers.
> 
> My question:
> Can you think of a reason NOT to ALWAYS add this detection format for
> these servers?  The call stack is only used by end point servers (park,
> voicemail, etc), not the proxy.

I cannot think of a reason.


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