Alphabetic telephone dialer apparatus and method

Details Alphabetic telephone dialer apparatus and method Alphabetic telephone dialer apparatus and method

1993-12-23

1995-02-07

Dwyer, James L.

Telephonic communications

Supervisory or control line signaling

Substation originated

379 52, 379 97, 379 98, 379 99, H04M 1100

Patent

active

053881540

ABSTRACT:
A telephone dialing method relating each key of an alphabetic keyboard to a numeric digit and a telephone dialing apparatus and alphabetic keyboard device for sending dual-tone-multi-frequency (DTMF) and/or pulse telephone dialing signals over a communication path such as a local loop connecting a subscriber telephone to a switching office via a telephone dialing circuit. The alphabetic keyboard device may be configured according to a conventional typewriter QWERTY keyboard layout and is connectable to a conventional telephone to supplement its 12-key standard keypad, allowing the telephone to be dialed with individual alphabetic letters.

REFERENCES:
patent: D337570 (1993-07-01), Bevilacqua et al.
patent: 4839919 (1989-06-01), Borges et al.
patent: 4991199 (1991-02-01), Parekh et al.
patent: 5008927 (1991-04-01), Weiss et al.
Copy of brochure entitled "Future Communicator!" dated Early Summer '94.

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