Call processing monitor system

Details Call processing monitor system Call processing monitor system

1979-11-23

1981-03-10

Robinson, Thomas A.

H04M 322

Patent

active

042556252

ABSTRACT:
The present invention is a call processing monitor circuit for dynamically verifying the operation of a telephone switching center. This system provides for continuously testing a telephone switching center's ability to process telephone traffic. This is accomplished by placing telephone calls one at a time from various network inlets to various network outlets in the switching center. For the detection of a predetermined number of consecutive failures, an output alarm signal is generated by 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: 3952172 (1976-04-01), Penn et al.
patent: 4021624 (1977-05-01), Kelly et al.
patent: 4076970 (1978-02-01), Lubarsky, Jr. et al.
"An . . . Automatic Call Sender for Testing . . . Telephone . . . Installations", Mackie, P.O. Electrical Engineers' Jour., vol. 61, Part 3, Oct. 1968, pp. 165-170.

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