DTMF transmission and displaying method for facsimile system

Telephonic communications – Telephone line or system combined with diverse electrical... – To produce visual-graphic copy

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37910001, 379355, H04M 1100

Patent

active

058091173

ABSTRACT:
A DTMF transmission method for a facsimile system which comprises an operating panel for generating key data according to operation of numeric keys, a dialing section of a telephone for receiving numeric key data from the operating panel and thus generating a DTMF signal, and a modem for detecting the DTMF signal received from the dialing section. The method comprises the steps of detecting the DTMF signal with the modem while power is supplied to the facsimile system and the telephone is in its hook-off state, displaying a telephone number corresponding to the detected DTMF signal, and storing the telephone number corresponding to the detected DTMF signal.

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