Automatic call generator

Details Automatic call generator Automatic call generator

1975-10-23

1977-05-03

Olms, Douglas W.

1791752R, H04M 324

Patent

active

040216241

ABSTRACT:
An automatic call generator is connectable with the main distribution frame of a common control telephone system and monitors the operation of the system. To this end, the automatic call generator is connected to dedicated line and trunk circuit ports and attempts to place calls from one dedicated spot to another. If the system fails to terminate a call within a prescribed period of time, a malfunction is noted. Two malfunctions within a prescribed set of programs for monitoring the system cause a system alarm to be generated. The call generator also tests itself after proceeding through assigned programs for monitoring the system.

REFERENCES:
patent: 3239612 (1966-03-01), McAllister
patent: 3497639 (1970-02-01), Malinich et al.
patent: 3515820 (1970-06-01), Bereznak
patent: 3692961 (1972-09-01), Le Strat et al.
patent: 3692962 (1972-09-01), Raczynski et al.
patent: 3700830 (1972-10-01), Naylor et al.
patent: 3778556 (1973-12-01), Mees et al.

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