Patent ID: 7330460

Claim:
A method, comprising the steps of: receiving first voice traffic at a first Voice over Internet Protocol (VoIP) gateway; determining whether a destination of the first voice traffic is serviced by a second VoIP gateway; in response to a determination that said destination is serviced by said second VoIP gateway, multiplexing, at said first VoIP gateway, at least one modified RTP packet conveying said first voice traffic with at least one modified RTP packet conveying second voice traffic being provided to said second VoIP gateway; and transporting said multiplexed modified RTP packets to said second VoIP gateway utilizing a plurality of User Datagram Protocol (UDP)/Internet Protocol (IP) packets; wherein each of said modified RTP packets comprises: a Payload field including voice traffic; an RTP header; a Call Identifier field for identifying a caller; a Length Indicator field for identifying a size of the Payload field; and a Header Error Check field for identifying errors in the Call Identifier field and the Length Indicator field.