< communications , protocol > (MGCP) A protocol used within a Voice over IP system. MGCP is an IETF work in progress, it superseded SGCP .
MGCP is an internal protocol used within a distributed system that appears to the outside world as a single VoIP gateway .
This system is composed of a Call Agent , and a set of gateways, including at least one "media gateway" that performs the conversion of media signals between circuits and packets , and at least one "signalling gateway" when connected to an SS7 controlled network.
IETF MGCP draft .
(1999-03-17)