RFC 3660 (rfc3660) - Page 2 of 64


Basic Media Gateway Control Protocol (MGCP) Packages



Alternative Format: Original Text Document



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
   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