Automated call filter

Details Automated call filter Automated call filter

1988-06-29

1989-07-25

Brown, Thomas W.

Telephonic communications

Audio message storage, retrieval, or synthesis

379214, 379216, 379233, H04M 350, H04M 714

Patent

active

048521493

ABSTRACT:
A Call Filter System (CFS): (1) logically interfaces between a public telephone network and business customer premises equipment; (2) automatically processes incoming and outgoing calls which are amenable to such intervention; and (3) enlists the aid of human intervention on calls requiring such intervention. The CFS includes a network line interface (NLI) for receiving calls from and placing calls to the public telephone network; a premises line interface (PLI) for receiving calls from and placing calls to the business customer premises equipment; a voice processing means (VPM) which is switchably interconnected to the NLI and/or the PLI for translating audio signals transmitted thereto from the NLI or PLI and for transmitting audio signals to the NLI or PLI; a connection and switching means (CSM) for connecting and switching the NLI to either the PLI or VPM and for connecting and switching the PLI to either the NLI or VPM; and a controller for directing the activities of the NLI, PLI, VPM and CSM to automatically process incoming calls to and outgoing calls from the CFS.

REFERENCES:
patent: 3111561 (1963-11-01), Dunning
patent: 4696028 (1987-09-01), Morganstein et al.
patent: 4797910 (1989-01-01), Daudelin
patent: 4797911 (1989-01-01), Szlam et al.

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