Method of and apparatus for controlling operation of a multi-lin

Details Method of and apparatus for controlling operation of a multi-lin Method of and apparatus for controlling operation of a multi-lin

1995-10-20

1998-11-24

Kuntz, Curtis A.

Telephonic communications

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

379164, 379165, 379377, H04M 100

Patent

active

058418512

ABSTRACT:
A telephone apparatus includes a phone jack arrangement (299) providing an interface to land lines from the central office and other telephone apparatuses. Phone jack arrangement (299) comprises a phone jack (306) having inner conductors (420, 422) coupled to outer conductors (406, 408) of a phone jack (304), and outer conductors (424, 426) coupled to inner conductors (402, 404) of phone jack (304). Condition detectors (232, 234) detect whether phone lines of phone line circuitry (270) are connected to land lines, and microprocessor (212) may operate the telephone apparatus or configure base station user interface (126) accordingly. A two-line operating mode may select one of the phone lines for operating use upon detection of a predetermined condition from condition detectors (232, 234) or ring detectors (246, 248). Thus, a multi-line telephone apparatus operates flexibly according to different phone line connections.

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patent: 4791658 (1988-12-01), Simon et al.
patent: 4817132 (1989-03-01), Chamberlain et al.
patent: 5386460 (1995-01-01), Boakes et al.
patent: 5390233 (1995-02-01), Jensen et al.
patent: 5471525 (1995-11-01), Domoto et al.
patent: 5590185 (1996-12-01), Sandler et al.
Meridian Business Set M5312 User Guide, Northern Telecom, Sep. 1988, 41 pages.

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