Two-module telephone terminal

Details Two-module telephone terminal Two-module telephone terminal

1985-10-07

1988-02-02

Brown, Thomas W.

Telephonic communications

Substation or terminal circuitry

For loudspeaking terminal

379419, 379429, H04M 102

Patent

active

047232765

ABSTRACT:
A telephone terminal whose structure separates the high voltage and the low voltage functions in separate modules; the high voltage module being specific to the telephone network and the low-voltage module being in conformity with the service provided by the terminal.

REFERENCES:
patent: 3444329 (1969-05-01), Krumreich
patent: 3489860 (1970-01-01), Greenman et al.
patent: 3627930 (1971-12-01), Tolman
patent: 3699498 (1972-10-01), Hardesty et al.
patent: 3745261 (1973-07-01), Friedman
patent: 4303805 (1981-12-01), Synek et al.
patent: 4472602 (1984-09-01), Bordelon et al.
"Modular Telephone User Equipment Line", H. Hansbauer et al., Telefon Report 9, 1973, Nos. 2-3, pp. 73-83.
"Siemens Miniset 200-A Compact Telephone for All Locations", H. Greska et al., Telecom Report 8, 1985, No. 6, pp. 372-376.
"Development of the New NTA Telephone Instrument", O. Gjessv.ang., Telektronikk (Norway), vol. 74, No. 4, 1978, pp. 306-323.

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