Telephone intercept system

Details Telephone intercept system Telephone intercept system

1987-11-19

1989-03-14

Dwyer, James L.

Telephonic communications

Special services

Call diversion

379212, 379214, H04M 350, H04M 354

Patent

active

048130702

ABSTRACT:
Intercept system for intercepting calls from a calling person to an unattended telephone connected to a telephone exchange having a three-way calling feature. The system includes at least one intercept console connected to the exchange, attended by an intercept operator and an intercept adaptor connected to the unattended telephone. The adaptor includes a ring detector for detecting ringing signals to the telephone, a circuit to generate a specific set of identifiable signature tones, an automatic dialer for accessing the three-way feature and for dialing the intercept console, an automatic stored digital code sender for sending a digital code to the intercept console identifying the unattended telephone to the operator; an apparatus for sending a start signal and a release signal from the console to the adaptor for respectively starting the voice message recorder and terminating the call in response to the operator answering the call and terminating the call.

REFERENCES:
patent: 3793487 (1974-02-01), Kilby
patent: 3858006 (1974-12-01), Tomita
patent: 3989901 (1976-11-01), Neuwirth et al.
patent: 4071698 (1978-01-01), Barger, Jr. et al.
patent: 4446337 (1984-05-01), Cofer
patent: 4670628 (1987-06-01), Boratgis et al.

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