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RFC 3435
Title: Media Gateway Control Protocol (MGCP)
Version 1.0
Author(s): F. Andreasen, B. Foster
Status: Informational
Date: January 2003
Mailbox: fandreas@cisco.com, bfoster@cisco.com
Pages: 210
Characters: 467084
Obsoletes: 2705
I-D Tag: draft-andreasen-mgcp-rfc2705bis-05.txt
URL: ftp://ftp.rfc-editor.org/in-notes/rfc3435.txt
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.
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.
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Joyce K. Reynolds and Sandy Ginoza
USC/Information Sciences Institute
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