Patent ID: 6026091
Filing Date: 2000-02-15
Classification: H04J,H04L,H04Q

Abstract:
A method of operating an ATM gateway system to handle a call wherein a first ATM system transmits ATM cells and telecommunications signaling for the call to the ATM gateway system, wherein the ATM cells from the first ATM system contain a first Virtual Path Identification/virtual Channel Identification (VPI/VCI), wherein the ATM gateway system is connected to a second ATM system, and wherein the ATM gateway system comprises an ATM gateway and a signaling processor coupled to the ATM gateway, the method comprising:receiving the signaling for the call from the first ATM system into the signaling processor;processing the signaling in the signaling processor to select a second VPI/VCI for the call;generating a control message in the signaling processor that identifies the first VPI/VCI and the second VPI/VCI;transmitting the control message to the ATM gateway;receiving the ATM cells from the first ATM system into the ATM gateway;modifying the first VPI/VCI to the second VPI/VCI in the ATM cells in the ATM gateway in response to the control message; andtransmitting the modified ATM cells from the ATM gateway to the second ATM system.