Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1994-11-23
1998-09-22
Harvey, David E.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455422, 455560, 370314, H04J 300
Patent
active
058129510
ABSTRACT:
The present invention relates to a wireless personal communications system (WPCS) having several features embodied in several forms. In one embodiment, the, WPCS includes at least one RP, a first SU in communication with the RP, and a second SU in communication with the first SU through the RP without involving the RPC in the manner contemplated by the specification. The RP may preferably include a channel switching unit for connecting the first SU with the second SU without using any tariff lines to or from an RPC. Such an RP may be used as a component in a wireless PBX or Centrex system including ISDN based systems. Another preferred embodiment provides for a walkie-talkie option where the first SU communicates directly with the second SU, preferably over an unlicensed frequency. In another preferred embodiment, a plurality of SUs in communication with an RP may be accessed individually using a single dialed number.
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"Generic Criteria for Version 0.1 Wireless Access Communications Systems (WACS)" Bellcore Technical Reference TR-INS-001313 Oct. 1993.
Coghlan Desmond
Fischler Robert
Ganesan Kalyan
Goh Kim
Johnson Harry
Harvey David E.
Hughes Electronics Corporation
Sales Michael W.
Whelan John T.
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