Patent ID: 7330728

Claim:
A method for locating a mobile subscriber terminal that is roaming in a coverage area of a serving network, the method comprising: a location based service provider that is outside of the serving network receiving from the serving network (i) a request for location based services and (ii) an identifier that is indicative of a first location system that is associated with the serving network, wherein the request for location based services is initiated by the mobile subscriber terminal, and the identifier is provided by the serving network; responsive to the request for location based services, the location based service provider sending to a second location system (i) a request for mobile positioning information for the mobile subscriber terminal, and (ii) the identifier, wherein the second location system is associated with a subscriber system to which the mobile subscriber terminal subscribes; the second location system sending the request for mobile positioning information to the first location system, wherein the request for mobile positioning information is directed to the first location system based on the identifier; the second location system receiving the mobile positioning information from the first location system; and the second location system sending the mobile positioning information to the location-based-service provider.