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For efficiency & reliability, when SIP transmits DTMF as non-audio data, it uses RFC2833 or INFO.<BR>
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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?<BR>
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Thank you,<BR>
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Brent<BR>
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