Brett List wrote:
Hi All,
I have a specific Need to detect SIT Tones is SIP RTP Early Media. I specifically need to be able to tell the difference between a RNA and a SIT.
It should be a function of your gateway. chap_sip doesn't support analog call progress. And, since you're using G.729 it could be rather difficult to detect the tri-tone reliability all the time.

Leo

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