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IETF RFC 5244
[ACTIVE]

Definition of Events for Channel-Oriented Telephony Signalling

Metadata

Publisher
IETF
Doc Type
Standard
Pages
23
Abstract
This memo updates RFC 4733 to add event codes for telephony signals used for channel-associated signalling when carried in the telephony event RTP payload. It supersedes and adds to the original assignment of event codes for this purpose in Section 3.14 of RFC 2833. As documented in Appendix A of RFC 4733, some of the RFC 2833 events have been deprecated because their specification was ambiguous, erroneous, or redundant. In fact, the degree of change from Section 3.14 of RFC 2833 is such that implementations of the present document will be fully backward compatible with RFC 2833 implementations only in the case of full ABCD-bit signalling. This document expands and improves the coverage of signalling systems compared to RFC 2833. [STANDARDS-TRACK]
Publication Date
2008-06-01
Status Note
Proposed Standard
DOI
10.17487/RFC5244
Link
https://doi.org/10.17487/RFC5244
Author(s)
Henning Schulzrinne
Tom Taylor
Keyword(s)
DTMF
Latest version of IETF RFC 5244

Document Versions — IETF RFC 5244

  • ▶ IETF RFC 5244 (2008-06-01)
    THIS DOC [ACTIVE] [LATEST VERSION]

Normative Reference(s)

  • Telcordia Technologies, "LSSGR: signalling for Analog Interfaces", Generic Requirement GR-506, June 1996. EXTERNAL
  • IETF RFC 2119 [Active*]
  • IETF RFC 3550 [Active*]
  • IETF RFC 3711 [Active*]
  • IETF RFC 4733 [Active*]
  • T-REC-G.704.1998 — 10 EXTERNAL
  • T-REC-Q.180.1988 — 5 EXTERNAL
  • T-REC-Q.332.1988 — 6 EXTERNAL
  • T-REC-Q.490.1988 — 7 EXTERNAL
  • T-REC-Q.724.1988 — ITU-T Recommendation Q.724 (1988): "Signalling procedures". EXTERNAL

Bibliographic Reference(s)

  • ANSI.T1.403.02.1999 — 16 EXTERNAL
  • IETF RFC 2833 [Superseded*]
  • IETF RFC 3552 [Active*]
  • T-REC-G.723.1996 — 20 EXTERNAL
  • T-REC-G.729.1996 — 21 EXTERNAL
  • T-REC-I.366.1999 — - ITU-T Recommendation I.366.2 (1999), AAL type 2 service specific convergence sublayer for trunking. EXTERNAL
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IETF RFC 5244, Definition of Events for Channel-Oriented Telephony Signalling. Available at https://doi.org/10.17487/RFC5244
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IETF RFC 5244, Definition of Events for Channel-Oriented Telephony Signalling. Available at https://doi.org/10.17487/RFC5244

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IETF RFC 5244, Definition of Events for Channel-Oriented Telephony Signalling. Available at https://doi.org/10.17487/RFC5244
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<span class="citation"><cite>IETF RFC 5244</cite>, Definition of Events for Channel-Oriented Telephony Signalling. Available at <a href="https://doi.org/10.17487/RFC5244" target="_blank" rel="noopener">https://doi.org/10.17487/RFC5244</a></span>

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IETF RFC 5244, Definition of Events for Channel-Oriented Telephony Signalling
doi: 10.17487/RFC5244
url: https://doi.org/10.17487/RFC5244
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<li>
<cite id="bib-rfc5244">IETF RFC 5244</cite>, Definition of Events for Channel-Oriented Telephony Signalling
<span class="doi">10.17487/RFC5244</span>
</li>