2.2 Message Syntax
The structure and syntax of the RTP/RTCP: DTMF Digits, Telephony Tones and Telephony Signals Data Extensions protocol is defined in [RFC4733] section 2.3.
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The structure and syntax of the RTP/RTCP: DTMF Digits, Telephony Tones and Telephony Signals Data Extensions protocol is defined in [RFC4733] section 2.3.