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 Fax Features. For details about the programming method, see Initial Settings.
This function is not available with Internet Fax, e-mail transmission, and folder transmission.
When Using the Fax Application
About how to use the application's screen, see "[Fax] Screen", Getting Started.
When Using the Fax (Classic) Application
For details about how to use the classic fax function, see Procedure for a Closed Network (Classic).