On Thu, 30 Dec 2004, Brent Goran wrote: > My question is - (not knowing much about IAX2) - when IAX2 transmits > DTMF as non-audio data - is it also using RFC2833 and/or INFO, or it it > using some other IAX2-specific mechanism with its own name? Yep - IAX's protocol is quite different from SIP/RTP. Steve