Patent ID: 6771763
Filing Date: 2004-08-03
Classification: H04L,H04M

Abstract:
A method of transporting voice traffic from a Voice over Digital Subscriber Line (VoDSL) gateway, over a Public Switched Telephone Network (PSTN), to a destination, said method comprising:receiving compressed voice traffic at said VoDSL gateway; determining whether said destination is serviced by a second VoDSL gateway by communicating a signaling message on at least one of a plurality of logical links dedicated to carrying signaling messages between said VoDSL gateway and said second VoDSL gateway via a Digital Signal level Zero (DS0) channel, wherein in response to a connect message said first VoDSL gateway communicates a VoDSL GWY message encapsulated in a V.120 packet to said second VoDSL gateway, and wherein said VoDSL GWY message comprises a call reference, a calling party telephone number, a called party telephone number, and a voice compression rate indicator; and transporting said compressed voice traffic to said second VoDSL gateway utilizing a plurality of transport packets, responsive to an affirmative determination that said destination is serviced by said second VoDSL gateway.