By default FS should pass RFC2833 without any change. Perhaps you don't have a "telephone-event" payload in the SDP answer from the other side (B-leg) ? Dragos On 11/10/2016 08:17, Yu Boot wrote:
FS receives DTMF tones from A-leg in RFC2833 mode, but generates SIP INFO to B-leg instead of RFC2833. How to fix this?
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