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System for automatically completing calls to mobile telephone subscribers

  • US 5,481,592 A
  • Filed: 10/05/1994
  • Issued: 01/02/1996
  • Est. Priority Date: 10/05/1994
  • Status: Expired due to Term
First Claim
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1. A method, usable in a wireless communications system, for completing a wireless call to a mobile subscriber regardless of the region in which the subscriber is located, said wireless communications system comprising a gateway switch connected to a plurality of wireless transmission-receiver stations, each of said stations providing wireless service to a predefined region of the earth, and each of said stations having a unique region code which code is used to route call to subscribers served by that station, said method comprising the steps of:

  • A. receiving a call to said subscriber at said gateway switch, said call including one of said region codes;

    B. said gateway switch extending said call to the one of said stations having said region code;

    C. responsive to said gateway switch receiving a prespecified signal from said one station having said region code which indicates that the call cannot be completed to said subscriber, said gateway switch substituting another region code and extending said call to the other of said stations which has said substituted region code.

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