Patent ID: 8780893

Claim:
In a Voice over Internet Protocol (VOIP) network comprising a plurality of call signaling and media proxy servers and a plurality of telephony gateways, wherein each of the plurality of telephony gateways is communicatively connected to one or more telephony networks separate from the VOIP network, a method comprising: in response to initiation of a VOIP call by an originating VOIP device, (a) selecting a particular telephony gateway of the plurality of telephone gateways to handle transmission of the VOIP call to a separate telephony network; (b) instructing a particular telephony gateway of the plurality of telephony gateways to send media packets associated with the VoIP call to a specific Internet Protocol (IP) address and port assigned to a particular call signaling and media proxy server of the plurality of call signaling and media proxy servers; and (c) by the particular call signaling and media proxy server, (1) receiving media packets from the particular telephony gateway, wherein the media packets are associated with the VOIP call; (2) modifying IP address information contained in said media packets; and (3) sending said modified media packets to the originating VOIP device.