Patent ID: 7477647

Claim:
A method of controlling common call connection in a media gateway for converting a traffic format according to a communication network, comprising the steps of: defining each of a plurality of termination points connected by a call in the media gateway as a termination, each of a plurality of multimedia services transmitted and received between the terminations through connection setup of the call as a stream, and each of a plurality of physical resources per multimedia service in the multimedia as a channel; receiving a call processing request based on a specific media gateway control protocol; if the call processing request is a connection setup request, receiving information corresponding to the defined channel and stream from the media gateway control protocol, and creating a switch channel structure for setting up a termination and a stream per channel that belongs to the call; comparing the created switch channel structure with existing switch channel structures and creating a switch entry structure for setting up connection between channels that belong to a same stream; and requesting resource allocation and physical connection setup for the channel based on the created switch channel structure and switch entry structure.