Patent ID: 6826176
Filing Date: 2004-11-30
Classification: H04L,H04Q

Abstract:
A method for controlling the routing of data packets through a packet-switched network, said method comprising the steps of:receiving a connection request associated with a remote media gateway (MGW) at a second MGW, said connection request including an address associated with said remote MGW, wherein said connection request is received by a controller associated with said second MGW from a controller associated with said remote MGW, said controllers communicating using an Integrated Services Digital Network User Part (ISUP) protocol; defining an association between said address associated with said remote MGW and an address associated with said second MGW; storing said address associated with said remote MGW and said address associated with said second MGW in a mapping table; receiving a broadcast message at said second MGW, said broadcast message including a source address; if said broadcast message includes an unknown destination indicator, querying said mapping table using said source address of said broadcast message; if said source address of said broadcast message is found in said mapping table, retrieving the address associated with said second MGW that is mapped to said source address; and, routing said broadcast message to said address associated with said second MGW, whereby said broadcast message is communicated through said second MGW without said remote MGW knowing the address associated with said second MGW.