Telephonic communications – Audio message storage – retrieval – or synthesis
Patent
1994-08-08
1995-09-12
Kuntz, Curtis
Telephonic communications
Audio message storage, retrieval, or synthesis
379 58, H04Q 720
Patent
active
054504740
ABSTRACT:
Prior-art radio networks constituted by cordless telephones in which the base stations of cordless telephones are connected to an exchange, comprise a control arrangement connected upstream of the base stations. To considerably reduce the circuitry and cost of a radio network constituted by cordless telephones, there is proposed that the exchange sends out a broadcast call addressed to a multiplicity of subscribers, the broadcast call containing a code assigned to a called cordless telephone and that transmitter means are provided in the base stations which send out a code contained in a broadcast call to the cordless telephones. When the command extension options of exchanges are suitably used, the function of a control arrangement in previous base stations can be integrated in the exchange without additional hardware extensions.
REFERENCES:
patent: 4700374 (1987-10-01), Bini
patent: 5090051 (1992-02-01), Muppidi et al.
patent: 5157660 (1992-10-01), Kuwahara et al.
patent: 5226071 (1993-07-01), Bolliger et al.
Balconi-Lamica Michael J.
Barschall Anne E.
Chernoff Michael B.
Kuntz Curtis
U.S. Philips Corporation
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