[Asterisk-Users] IAX2 and DTMF

[Brent Goran]

For efficiency & reliability, when SIP transmits DTMF as non-audio data,
it uses RFC2833 or INFO.

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?

Thank you,

Brent

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