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Media Gateway Control Protocol (MGCP) Version 1.0 (RFC3435)

IP.com Disclosure Number: IPCOM000011184D
Original Publication Date: 2003-Jan-01
Included in the Prior Art Database: 2003-Feb-13

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

F. Andreasen: AUTHOR [+2]

Abstract

This document describes an application programming interface and a corresponding protocol (MGCP) which is used between elements of a decomposed multimedia gateway. The decomposed multimedia gateway consists of a Call Agent, which contains the call control "intelligence", and a media gateway which contains the media functions, e.g., conversion from TDM voice to Voice over IP.

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Network Working Group� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � F. Andreasen

Request for Comments: 3435� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � B. Foster

Obsoletes: 2705� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Cisco Systems

Category: Informational� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � January 2003

� � � � � � � � � � � � � � � � Media Gateway Control Protocol (MGCP)

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � Version 1.0

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 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.

Abstract

� � This document describes an application programming interface and a

� � corresponding protocol (MGCP) which is used between elements of a

� � decomposed multimedia gateway.� The decomposed multimedia gateway

� � consists of a Call Agent, which contains the call control

� � "intelligence", and a media gateway which contains the media

� � functions, e.g., conversion from TDM voice to Voice over IP.

� � Media gateways contain endpoints on which the Call Agent can create,

� � modify and delete connections in order to establish and control media

� � sessions with other multimedia endpoints.� Also, the Call Agent can

� � instruct the endpoints to detect certain events and generate signals.

� � The endpoints automatically communicate changes in service state to

� � the Call Agent.� Furthermore, the Call Agent can audit endpoints as

� � well as the connections on endpoints.

Andreasen & Foster� � � � � � � � � � Informational� � � � � � � � � � � � � � � � � � � � � [Page 1]

RFC 3435� � � � � � � � � � � � � � � � � � � � � � � MGCP 1.0� � � � � � � � � � � � � � � � � � � January 2003

� � The basic and general MGCP protocol is defined in this document,

� � however most media gateways will need to implement one or more MGCP

� � packages, which define extensions to the protocol suitable for use

� � with specific types of media gateways.� Such packages are defined in

� � separate documents.

Table of Contents

� � 1.� � � � Introduction.................................................5

� � 1.1� � � Relation with the H.323 Standards............................7

� � 1.2� � � Relation with the IETF Standards.............................8...