Importance

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Abstract

A media gateway (MGW), and methods related thereto, for controlling the routing of data packets through a 'connectionless' packet-switched network, without bearer-channel control signaling. In an exemplary embodiment, an Integrated Services Digital Network User Part (ISUP) Initial Address Message (IAM) is transmitted from a controller 110-A associated with a MGW 120-A to a controller 110-B associated with a MGW 120-B; the IAM includes a source address for data packets at the MGW 120-A. The controller 110-B sends a resource allocation message to the MGW 120-B, which defines and stores an association between the source address for the data packets and an address associated with the MGW 120-B in a mapping table 230. Subsequently, when the MGW 120-B receives a broadcast message including an unknown destination indicator, it queries the mapping table 230 using the source address of the broadcast message. If the source address of the broadcast message is found in the mapping table 230, the MGW 120-B retrieves the address of the MGW 120-B that is mapped to the source address and routes the broadcast message to that address.

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First Claim