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System for programming of features of a mobile cellular telephone unit

  • US 5,109,403 A
  • Filed: 05/11/1990
  • Issued: 04/28/1992
  • Est. Priority Date: 05/11/1990
  • Status: Expired due to Term
First Claim
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1. A method of operating a cellular telephone system to program software feature switches in a mobile telephone, comprising the steps of:

  • (a) operating a host computer to initiate a first call to the mobile telephone, thereby causing a cell site facility to broadcast an initiate signal via a control channel;

    (b) operating a first processor in the mobile telephone to monitor the control channel and generate an alert signal in the mobile telephone in response to the initiate signal;

    (c) generating a first answer signal in the mobile telephone if an operator answers the first call in response to the alert signal;

    (d) operating the first processor to effectuate broadcasting of a first acknowledge signal via the control channel in response to the first answer signal, to thereby cause the cell site facility to complete a voice channel connection between a modem associated with the host computer and the mobile telephone;

    (e) operating a tone generator associated with the host computer to generate a distinct tone on the voice channel connection;

    (f) detecting the distinct tone on the voice channel connection in the mobile telephone;

    (g) operating the first processor to cause the mobile telephone to broadcast a second acknowledge signal to the host computer in response to the detecting;

    (h) operating the host computer to effectuate broadcasting of feature switch data via the voice channel connection in response to the second acknowledge signal;

    (i) operating the first processor to write feature switch data received via the voice channel connection into a plurality of the software feature switches in the mobile telephone, wherein the feature switch data includes first feature switch data to prevent a user from placing a call with the mobile telephone;

    (j) operating the first processor in response to the first feature switch data to prevent the user from placing a call to a user-selected telephone number with the mobile telephone, wherein the feature switch data includes second feature switch data to cause any call attempted to be made from the mobile telephone to be forwarded to a telephone having a predetermined telephone number, the second feature data including the selected telephone number;

    (k) operating the first processor to effectuate forwarding a call placed on the mobile telephone to the telephone having the predetermined telephone number; and

    (l) operating the first processor to self-initiate calls to the host computer by auto-dialing a telephone number of the modem associated with the host computer in response to a timing circuit in the mobile telephone.

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