Switching controller with supervisory mode for communication ter

Details Switching controller with supervisory mode for communication ter Switching controller with supervisory mode for communication ter

1996-04-10

1998-09-22

Woo, Stella

Telephonic communications

Telephone line or system combined with diverse electrical...

To produce visual-graphic copy

379 9309, H04M 1100

Patent

active

058126465

ABSTRACT:
A switching controller controls two switches, which connect a first communication terminal such as a telephone set and a second communication terminal such as a facsimile machine to the same communication line. Under certain conditions, such as when the second communication terminal originates or answers a call for the first communication terminal, the switching controller monitors the status of the first communication terminal and automatically disconnects the second communication terminal from the communication line responsive to that status. For a telephone set, the monitored status is the on-hook/off-hook status.

REFERENCES:
patent: 4987586 (1991-01-01), Gross et al.
patent: 5086453 (1992-02-01), Senoo et al.
patent: 5086455 (1992-02-01), Satomi et al.
patent: 5444771 (1995-08-01), Ohnishi

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