RFC - 2705

Media Gateway Control Protocol (MGCP) Version 1.0

Original:	ftp://ftp.isi.edu/in-notes/rfc2705.txt
Authors:	M. Arango [RSL COM], A. Dugan [Level3 Communications], I. Elliott [Level3 Communications], C. Huitema [Telcordia], S. Pickett [Vertical Networks]
Date:	October 1999
Category:	Informational
This specification has been !!! obsoleted !!!

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Obsoleted by:
RFC-3435	Media Gateway Control Protocol (MGCP) Version 1.0 (Updated by RFC-3661)

Updated by:
RFC-3660	Basic Media Gateway Control Protocol (MGCP) Packages

Referred by:	11 RFC
Refers to:	10 RFC

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Status

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 (1999). All Rights Reserved.

IESG Note

This document is being published for the information of the community. It describes a protocol that is currently being deployed in a number of products. Implementers should be aware of developments in the IETF Megaco Working Group and ITF-T SG16 who are currently working on a potential successor to this protocol.

Abstract

This document describes an application programming interface and a corresponding protocol (MGCP) for controlling Voice over IP (VoIP) Gateways from external call control elements. MGCP assumes a call control architecture where the call control "intelligence" is outside the gateways and handled by external call control elements.

The document is structured in 6 main sections:

• The introduction presents the basic assumptions and the relation to other protocols such as H.323, RTSP, SAP or SIP.
• The interface section presents a conceptual overview of the MGCP, presenting the naming conventions, the usage of the session description protocol SDP, and the procedures that compose MGCP: Notifications Request, Notification, Create Connection, Modify Connection, Delete Connection, AuditEndpoint, AuditConnection and RestartInProgress.
• The protocol description section presents the MGCP encodings, which are based on simple text formats, and the transmission procedure over UDP.
• The security section presents the security requirement of MGCP, and its usage of IP security services (IPSEC).
• The event packages section provides an initial definition of packages and event names.
• The description of the changes made in combining SGCP 1.1 and IPDC to create MGCP 1.0.

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