| 摘要 |
When facsimile data is transmitted by performing facsimile communication, a public line is seized. Then, when the public line is seized, it is a determined which of a dial tone signal or a voice signal for phone call a signal received from the public line is, it is controlled to perform the facsimile communication in a case where the received signal is determined as the dial tone signal, and it is controlled not to perform the facsimile communication in a case where the received signal is determined as the voice signal. |
