Method for automatically confirming line connection upon install

Details Method for automatically confirming line connection upon install Method for automatically confirming line connection upon install

1997-03-26

1998-11-24

Chan, Wing F.

Telephonic communications

Telephone line or system combined with diverse electrical...

To produce visual-graphic copy

37910005, 379 34, 358406, 358434, H04M 1100

Patent

active

058418440

ABSTRACT:
A facsimile system automatically confirms a connection status of a facsimile system and a telephone handset upon a power-up by sensing the power. The facsimile system includes first and second connection terminals, and a relay for forming a communication path between the first and second connection terminals and a parallel connection telephone handset according to control of a controller, and for forming a communication path between the first connection terminal and a modem during a facsimile mode. In order to automatically confirm a line connection, the facsimile system generates a facsimile mode control signal upon a power-up, and detects a dial tone; and then, generates a waiting mode control signal if the dial tone is detected, and generating a line connection request message if the dial tone is not detected.

REFERENCES:
patent: 5101428 (1992-03-01), Koue
patent: 5283661 (1994-02-01), Klees
patent: 5323451 (1994-06-01), Yatsunami

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