Patent ID: 6052457
Filing Date: 2000-04-18
Classification: H04Q,Y10S

Abstract:
A method of routing a customer UIFN call dialed to a UIFN telephone number, said method comprising the steps of:distinguishing between a plurality of international carriers having respective international service gateways for routing telephones calls;selecting a first one of said international carriers to route said UIFN call;routing said UIFN call to said first international carrier;determining whether said first international carrier should route said UIFN call to said UIFN telephone number or to said first international carrier's international service gateway;routing said UIFN call to said UIFN telephone number or to said first international carrier's international service gateway in accordance with said determination; androuting said UIFN call received by said first international carrier's international service gateway to the international service gateway of a second one of said plurality of international carriers for routing to said UIFN telephone number.