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Radio telephone system having a handset adapted to be removably connected and containing a NAM for storing a telephone number identifying the handset

  • US 5,259,018 A
  • Filed: 08/05/1992
  • Issued: 11/02/1993
  • Est. Priority Date: 03/17/1989
  • Status: Expired due to Term
First Claim
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1. A radio telephone for communicating on a radio system having at least one fixed site and a plurality of radio telephones, comprising:

  • handset means, only operative for communication with a fixed site when interconnected with a host telephone means, including handset number assignment means for storing a handset numeric identifier, and data link means for providing connection to said handset number assignment means by an entity external to said handset means;

    host telephone means external to said handset means including means for accessing said handset number assignment means when said handset means is interconnected with said host telephone means, said host telephone means assuming said numeric identifier of said handset means for communicating with a fixed site both for outgoing and incoming calls, memory means for storing said handset numeric identifier from said handset number assignment means, and means for automatically enabling transfer of said handset numeric identifier from said handset number assignment means to said memory means when said handset means is interconnected with said host telephone means, and for further controlling erasure of said handset numeric identifier from said memory means when said handset means is disconnected from said host telephone means; and

    interconnection means for removably interconnecting said handset means with said host telephone means.

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