| 摘要 |
PURPOSE:To attain communication while realizing secrecy security with a general G3 equipment sending call station identification by collating a facsimile information field of call station identification sent from the caller side with a password set by the called party in polling communication. CONSTITUTION:When a called party facsimile equipment 9 is called by a ringer signal of a caller-side facsimile equipment 8, an automatic incoming device 10 detects the ringer signal, connects a telephone line to the facsimile equipment and the called side facsimile equipment 9 sends called station identification (CED)/non-standard equipment (NSF)/called station identification (CSI)/digital identification signal (DIS). The caller-side facsimile equipment 1 receives the signals and detects the NSF to identify that the opposite station is not the equipment of the own company, and then the non-standard equipment instruction (NSC) is not sent but the caller station identification (CIG)/digital transmission instruction (DTC) are sent. Then the called party facsimile equipment 2 collates the facsimile information field (FIF) of the received CIF with the password set by a password setting device 12 and sends the transmission station identification (TSI)/digital instruction signal (DCS) only when they are coincident, and sends original information after the reception preparation confirmation (CFR) is awaited. |
