Automatic dialing and alarm system

Details Automatic dialing and alarm system Automatic dialing and alarm system

1983-03-03

1984-07-24

Pellinen, A. D.

179 5R, H04M 1104

Patent

active

044619278

ABSTRACT:
A system is disclosed which may readily be added to an existing system of phones and electrical outlets. It includes circuitry that, responsive to sensing of a condition, seizes a telephone line, dials a single digit and introduces a preferably beeping signal into the line to warn the switchboard operator of the sensed condition. The system repeats the cycle until the sensed condition ceases.

REFERENCES:
patent: 2550076 (1951-04-01), McCarron
patent: 3801971 (1974-04-01), Stendig et al.
patent: 3872253 (1975-03-01), Jurschak
patent: 3989900 (1976-11-01), Dibner

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