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Apparatus for dialing of caller ID block code and receiving call waiting caller-ID-signal

  • US 5,796,810 A
  • Filed: 10/10/1995
  • Issued: 08/18/1998
  • Est. Priority Date: 10/10/1995
  • Status: Expired due to Fees
First Claim
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1. An apparatus, coupled to a telephone line, for dialing a block code to a central telephone switching office for blocking the transmission of information identifying a caller to a called party, comprising:

  • a block key where a block code and a first set of block code prompts and descriptions are preprogrammed;

    a program means for causing said apparatus to enter an additional code programming mode;

    an additional code means for programming said block key to enter one of a plurality of additional operation modes;

    an ON/OFF-HOOK status detector for detecting the ON/OFF-HOOK status of said apparatus or of said telephone line;

    a display for displaying said various block code prompts and descriptions;

    wherein, when no additional operation mode is programmed in said block key, pressing said block key while said telephone line is ON-HOOK causes said apparatus to display said block code and a block code description on said display;

    wherein, when no additional operation mode is programmed in said block key, pressing said block key while said telephone line is OFF-HOOK causes said apparatus to dial said block code and to display a first block code confirmation description on said display;

    wherein, when any one of said plurality of additional operation modes is programmed in said block key, pressing said block key while said telephone line is ON-HOOK causes said apparatus to display a second set of block code prompts and descriptions on said display;

    wherein, when a first of said plurality of additional operation modes is programmed in said block key and said ON/OFF-HOOK status detector indicates said telephone line is OFF-HOOK, said apparatus displays a prompt message on said display asking a user whether he/she want to dial said block code;

    wherein, when a second of said plurality of additional operation modes is programmed in said block key and said OFF-HOOK status detector indicates said telephone line is OFF-HOOK, said apparatus automatically dials said block code and displays a second block code confirmation description on said display.

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