Transmission will only take place if the destination's Closed Network Code is the same as yours.
This function can stop you accidentally sending information to the wrong place.
You must program a Closed Network Code beforehand, using Program Closed Network Code under Facsimile Features. For details about the programming method, see Initial Settings.
This function is not available with Internet Fax, e-mail transmission, and folder transmission.
Press [Send Settings].
Press [] three times, and then press [Option Setting].
Press [Closed Network] to highlight it.
Press [OK] twice.