Programmable dialer system

Details Programmable dialer system Programmable dialer system

1988-03-23

1989-11-21

Dwyer, James L.

Telephonic communications

Supervisory or control line signaling

Substation originated

379356, H04M 126

Patent

active

048827509

ABSTRACT:
A telephone dialer system consists of a programming unit, and a portable telephone dialer unit for producing a selected sequence of dual tone modulated frequency dialing tones, adapted to be programmed by the programming unit when said portable telephone dialer is releasably electrically coupled to said programming unit. The portable telephone dialer has a case, a reprogrammable memory, a programming interface, a speaker, a battery, a dual tone modulated frequency signal generating integrated circuit chip, and a single bi-state switch operable from the exterior of the case.

REFERENCES:
patent: 4763355 (1988-08-01), Cox

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