Patent ID: 7548332

Claim:
A network facsimile apparatus configured to perform a facsimile communication by a Transmission Control Protocol (TCP) which executes a retransmission of facsimile data by waiting for a time-out at a transmitting end, or by a User Datagram Protocol (UDP) which adds an error correction data, said network facsimile apparatus comprising: a transmitting part configured to transmit a predetermined command; a receiving part configured to receive a response signal with respect to the predetermined command; a detecting part configured to detect a time difference from a time when the predetermined command is transmitted by the transmitting part to a time when the response signal is received by the receiving part; a comparing part configured to compare the time difference detected by the detecting part and a predetermined value and to obtain a comparison result; and a determining part configured to determine whether to perform the facsimile communication by the TCP or by the UDP, based on the comparison result obtained by the comparing part.