Key telephone system adapted to respond to information stored in

Details Key telephone system adapted to respond to information stored in Key telephone system adapted to respond to information stored in

1989-08-07

1991-02-26

Schreyer, Stafford D.

Telephonic communications

Multi-line or key substation system with selective switching...

379165, 379216, 379361, H04M 126

Patent

active

049967088

ABSTRACT:
There is provided a key telephone system for transmitting and receiving a dial number by a peculiar control signal between a main unit and an extension telephone. The system comprises: an extension telephone; a main unit; an analyzing unit for analyzing an audio signal; and a calling unit for calling in accordance with the result by the analysis of the analyzing means. The calling unit generates a dial pulse. When a calling request from the extension telephone is detected, the main unit connects the extension telephone and the analyzing unit. Information generated by an electronic apparatus via which the dial number can be independently registered from an extension telephone of the KTs is analyzed and calling or displaying can be executed.

REFERENCES:
patent: 4126768 (1978-11-01), Grenzow
patent: 4644107 (1987-02-01), Clowes et al.

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