Patent ID: 6400722
Filing Date: 2002-06-04
Classification: H04L,H04M,H04W

Abstract:
A coupled data network comprising:a foreign network that includes a base station, a wireless hub, and a foreign mobile switching center with a serving registration server, and a serving inter-working function; a home network that includes a home mobile switching center with a home registration server and a home inter-working function; and an end system subscribed to the home network and operating within the foreign network, the end system including an end registration agent to form a registration request, the registration request including an indication of a desired communications network having a desired communications server, the end system sending the registration request to the serving registration server, the serving registration server including a first module to process the registration request and to determine an optimum route between the desired communications server and one of the home inter-working function and the serving inter-working function, the serving registration server further including a second module to link the serving inter-working function to the desired communications server when the first module determines that the optimum route is between the serving inter-working function and the desired communications server.