Patent ID: 7236799

Claim:
An apparatus for use with a cellular system that provides voice and location-based services, the apparatus comprising: an antenna; a wireless transceiver coupled to the antenna; a memory, wherein the memory includes a first table of electronic identifiers associated with wireless mobile devices that may receive a current location of the apparatus and a second table of electronic identifies associated with wireless mobile devices whose location the apparatus may receive; a portable power supply; an audio subsystem for exchanging voice signals with a user; a processor coupled to the wireless transceiver, the portable power supply, the audio subsystem and the memory for permitting wireless communication with the cellular system; a housing sized to be held in a user's hand and configured to carry the antenna, wireless transceiver, memory, portable power supply and processor; and a user interface carried by the housing and coupled to the processor, wherein the user interface includes a button having a primary configuration to request at least one of the location-based services from the cellular system when actuated by a user, wherein the location-based services include determining the location of the apparatus and the location of a second apparatus operating on the cellular system and establishing a communication link between the apparatus and the second apparatus if the respective locations fall within a predefined range of locations, wherein the apparatus is first granted permission from the wireless communications network before providing location-based services.