Basic Media Gateway Control Protocol (MGCP) Packages
RFC 3660

 
Document Type RFC - Informational (December 2003; No errata)
Updates RFC 2705
Last updated 2013-03-02
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IESG IESG state RFC 3660 (Informational)
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Responsible AD Allison Mankin
IESG note IESG Note This document is being published for the information of the community. It describes a non-IETF protocol that is currently being deployed in a number of products. Implementers should be aware of RFC 3015, which was developed in the IETF Megaco Working Group and the ITU-T SG16 and which is considered by the IETF and ITU-T to be the standards-based (including reviewed security considerations) way to meet the needs that MGCP was designed to address. The IETF Megaco working group and the ITU-T Study Group 16 are developing extensions to RFC 3015 for functions of the type addressed in this document.
Send notices to <andrew.dugan@L3.com>, <fandreas@telcordia.com>
Network Working Group                                          B. Foster
Request for Comments: 3660                                  F. Andreasen
Updates: 2705                                              Cisco Systems
Category: Informational                                    December 2003

         Basic Media Gateway Control Protocol (MGCP) Packages

Status of this Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2003).  All Rights Reserved.

IESG Note

   This document is being published for the information of the
   community.  It describes a non-IETF protocol that is currently being
   deployed in a number of products.  Implementers should be aware of
   RFC 3525 [37], which was developed in the IETF Megaco Working Group
   and the ITU-T SG16, and is considered by the IETF and ITU-T to be the
   standards-based (including reviewed security considerations) way to
   meet the needs that MGCP was designed to address.  The IETF Megaco
   Working Group and the ITU-T Study Group 16 are developing extensions
   to RFC 3525 [37] that for functions of the type in addressed in this
   document.

Abstract

   This document provides a basic set of Media Gateway Control Protocol
   (MGCP) packages.  The generic, line, trunk, handset, RTP, DTMF (Dual
   Tone Multifrequency), announcement server and script packages are
   updates of packages from RFC 2705 with additional explanation and in
   some cases new versions of these packages.  In addition to these,
   five new packages are defined here.  These are the signal list,
   resource reservation, media format, supplementary services and digit
   map extension packages.

Foster & Andreasen           Informational                      [Page 1]
RFC 3660                  Basic MGCP Packages              December 2003

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  2
       1.1.  List of Packages . . . . . . . . . . . . . . . . . . . .  3
       1.2.  Changes to Existing RFC 2705 Packages. . . . . . . . . .  3
             1.2.1.  Change in Signal Types . . . . . . . . . . . . .  3
             1.2.2.  Operation Complete and Operation Failure . . . .  3
             1.2.3.  Package Versions . . . . . . . . . . . . . . . .  4
             1.2.4.  Event Definitions, Aliases and Interoperability
                     Issues . . . . . . . . . . . . . . . . . . . . .  4
             1.2.5.  New Events . . . . . . . . . . . . . . . . . . .  5
       1.3.  New Packages and Excluded Packages . . . . . . . . . . .  5
   2.  Packages . . . . . . . . . . . . . . . . . . . . . . . . . . .  5
       2.1.  Generic Media Package. . . . . . . . . . . . . . . . . .  7
       2.2.  DTMF Package . . . . . . . . . . . . . . . . . . . . . . 11
       2.3.  Trunk Package. . . . . . . . . . . . . . . . . . . . . . 16
       2.4.  Line Package . . . . . . . . . . . . . . . . . . . . . . 24
       2.5.  Handset Emulation Package. . . . . . . . . . . . . . . . 33
       2.6.  Supplementary Services Tone Package. . . . . . . . . . . 36
       2.7.  Digit Map Extension. . . . . . . . . . . . . . . . . . . 37
       2.8.  Signal List Package. . . . . . . . . . . . . . . . . . . 38
       2.9.  Media Format Parameter Package . . . . . . . . . . . . . 39
       2.10. RTP Package. . . . . . . . . . . . . . . . . . . . . . . 43
       2.11. Resource Reservation Package . . . . . . . . . . . . . . 48
             2.11.1. Description. . . . . . . . . . . . . . . . . . . 48
             2.11.2. Parameter Encoding . . . . . . . . . . . . . . . 52
             2.11.3. Events . . . . . . . . . . . . . . . . . . . . . 53
       2.12. Announcement Server Package. . . . . . . . . . . . . . . 55
       2.13. Script Package . . . . . . . . . . . . . . . . . . . . . 56
   3.  IANA Considerations. . . . . . . . . . . . . . . . . . . . . . 59
   4.  Security Considerations. . . . . . . . . . . . . . . . . . . . 59
   5.  Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 59
   6.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 60
       6.1.  Normative References . . . . . . . . . . . . . . . . . . 60
       6.2.  Informative References . . . . . . . . . . . . . . . . . 62
   7.  Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . 63
   8.  Full Copyright Statement . . . . . . . . . . . . . . . . . . . 64

1.  Introduction

   This document provides a basic set of Media Gateway Control Protocol
   (MGCP) packages.  The generic, line, trunk, handset, RTP, DTMF,
   announcement server and script packages are updates of packages from
   RFC 2705 [38] with additional explanation and in some cases new
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