Telephone message center

Details Telephone message center Telephone message center

1994-12-29

1997-04-22

Tsang, Fan

Telephonic communications

Audio message storage, retrieval, or synthesis

379 98, 379142, 379199, 379201, 379246, 370271, H04M 1100

Patent

active

056235372

ABSTRACT:
A telephone message system overcomes the problems and limitations of presently available systems that seek to enhance inter-and intra-premises communications. The system advantageously comprises a controller unit with Caller ID capabilities and one or more adjunct units that are bridged onto a single wire-pair at a user's residential location in a parallel electrical connection. These customer installable units are merely plugged into any telephone jack and share a telephone wire-pair with existing telephone extensions without interference. Such operation is possible since communication between the controller unit and the adjunct units is limited to a frequency band different from the audio frequency band used by the existing telephone extensions on the single wire-pair. The controller unit, in one configuration, operates as an answering machine with multiple mailboxes. This functionality is advantageously combined with Caller ID, intercom and speakerphone capabilities. The adjunct units may be added to any of existing telephone devices thereby providing access to the functions available at the controller unit throughout the premises.

REFERENCES:
patent: 4262171 (1981-04-01), Schneider et al.
patent: 5339354 (1994-08-01), Becker et al.
patent: 5388150 (1995-02-01), Schneyer et al.
patent: 5550900 (1996-08-01), Ensor et al.

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