Patent ID: 7206574

Claim:
A method in a first wireless communication system for obtaining communications-related identification information associated with a second communication system comprising the steps of: receiving a first request for initial communication services from a first wireless subscriber at a first switching center of the first communication system; determining if the first request contains a first flag identifying the request as seeking the communications-related identification information about a second subscriber in the second communication system; generating and transmitting a first message to the second subscriber in response to the first request containing the first flag, the first message containing a text query identifying the first message as seeking the communications-related identification information associated with the second subscriber; determining if the second subscriber authorizes the transmission of communications-related identification information associated with the second subscriber upon receipt of the first message; transmitting a reply message to the first subscriber including the communications-related identification information of the second subscriber by the first communication system if the second subscriber authorizes said transmission.