Patent ID: 7050810

Claim:
A subscriber location determination system operable in a communications network for extending an incoming call to a determined present communication location of a subscriber, who is the called party comprising: means, located in said communication network, for storing subscriber location data that identifies a present communication location in said communications network for a subscriber, who is the called party; means, responsive to receipt of an incoming call from a calling party and directed to a listed directory number of said subscriber, for retrieving said stored subscriber location data from said means for storing; means for extending said incoming call to a communication location in said communications network identified by said retrieved subscriber location data when said present communication location in said communications network for said subscriber differs from said listed directory number of said subscriber, means for determining an identity of said calling party; means for comparing said determined identity of said calling party with call filter data stored in said means for storing subscriber location data; and means, responsive to aid means for comparing authorizing completion of said incoming call, for activating said means for extending.