RFC 4733: RTP Payload for DTMF Digits, Telephony Tones, and Telephony Signals

This memo describes how to carry dual-tone multifrequency (DTMF) signalling, other tone signals, and telephony events in RTP packets. It obsoletes RFC 2833.…

Read RFC 4733 on the RFC Editor

Outgoing relationships (1 related RFC)

Obsoletes — RFC 2833: RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals

Incoming relationships (15 related RFCs)

Updated by, Normatively referenced by — RFC 4734: Definition of Events for Modem, Fax, and Text Telephony Signals
Updated by — RFC 5244: Definition of Events for Channel-Oriented Telephony Signalling
Normatively referenced by — RFC 7874: WebRTC Audio Codec and Processing Requirements
Normatively referenced by — RFC 5552: SIP Interface to VoiceXML Media Services
Normatively referenced by — RFC 9248: Interoperability Profile for Relay User Equipment
Informatively referenced by — RFC 5888: The Session Description Protocol (SDP) Grouping Framework
Informatively referenced by — RFC 8829: JavaScript Session Establishment Protocol (JSEP)
Informatively referenced by — RFC 5456: IAX: Inter-Asterisk eXchange Version 2
Informatively referenced by — RFC 6231: An Interactive Voice Response (IVR) Control Package for the Media Control Channel Framework
Informatively referenced by — RFC 6787: Media Resource Control Protocol Version 2 (MRCPv2)
Informatively referenced by — RFC 9317: Operational Considerations for Streaming Media
Informatively referenced by — RFC 5629: A Framework for Application Interaction in the Session Initiation Protocol (SIP)
Informatively referenced by — RFC 6917: Media Resource Brokering
Informatively referenced by — RFC 10006: Automatic SIP Trunking and Peering
Informatively referenced by — RFC 10014: Guidelines for Characterizing the Term "OAM"