Importance

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Abstract

A selective call system (100) has a plurality of base sites (120-124) for communicating with a plurality of selective call receivers (108) with acknowledge-back capability. A base site transmitter (210) transmits signals encoded with a stored location identifier (132), a base site receiver (241) receives acknowledge-back signals in response to the transmitted signals and a controller (206) determines when a selective call receiver (108) is authorized to receive location specific information (134). The base site transmitter (210) downloads the location specific information (134) to the selective call receiver (108) in response to verifying that the selective call receiver (108) is authorized. The selective call receiver (108) the signals having the location identifier (132) and the downloaded location specific information (134). A decoder/controller (306) compares the location identifier (132) received with the stored location identifier (132) of selective call receiver (108) to determine when the selective call receiver (108) has roamed to the new service area and stores the new location identifier (132). An acknowledge-back transmitter (334) transmits the new location identifier (132) to a home service area for enabling paging information to be routed from the home service area to the selective call receiver (108) at the new service area.

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First Claim