I-D ACTION:draft-andreasen-mgcp-rfc2705bis-05.txt

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	Title		: Media Gateway Control Protocol (MGCP) Version 1.0
	Author(s)	: F. Andreasen, B. Foster
	Filename	: draft-andreasen-mgcp-rfc2705bis-05.txt
	Pages		: 195
	Date		: 30-May-02
	
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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