Shared line telephone answering device

Details Shared line telephone answering device Shared line telephone answering device

1991-03-19

1994-08-16

Brown, Thomas W.

Telephonic communications

Audio message storage, retrieval, or synthesis

379 73, 379 77, 379 88, 379 95, 379182, H04M 165, H04M 350

Patent

active

053393546

ABSTRACT:
For a single telephone line having plural telephone answering devices (TADs) connected to it, a system of TADs is disclosed where only one TAD answers the telephone but all other TADs connected to the telephone line are accessible and activated by means of tones transmitted over the telephone line by the caller. The caller is notified by the answering TAD of the available tone codes which are then used to select the desired TAD. When a TAD is selected by means of tones, the first TAD is temporarily disconnected from the telephone line so that message privacy is maintained.

REFERENCES:
patent: 4788714 (1988-11-01), Hashimoto
patent: 5056132 (1991-10-01), Coleman et al.
patent: 5086458 (1992-02-01), Bowen
Command Communications Inc.

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