Data communication apparatus having the function of automaticall

Details Data communication apparatus having the function of automaticall Data communication apparatus having the function of automaticall

1993-12-06

1995-06-27

Kuntz, Curtis

Telephonic communications

Telephone line or system combined with diverse electrical...

To produce visual-graphic copy

379 97, H04M 1100

Patent

active

054286735

ABSTRACT:
A facsimile apparatus sends a quasi-ring back tone to a destination in response to a call from the destination, and detects a CNG from the destination while the apparatus is periodically sending the quasi-ring back tone to the destination. When the apparatus detects a CNG for the first time, the apparatus stops sending the quasi-ring back tone and then performs facsimile communication in response to a second detection of a CNG from the destination, so as to certainly detect the CNG and to quickly shift to facsimile communication.

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