This feature is available only for some countries.

If you are connecting the machine to a line that features PBX or ISDN to send and receive faxes, you must select a Telephone Line Type that matches your line's features.

1. Press (Settings) > All Settings > Initial Setup > Phone Line Set.
    
2. Press Normal, PBX or ISDN.
    
3. If you selected PBX, do the following steps:
    
   1. Press On or Always.
      • If you select On, the machine dials a prefix number before the fax number only when R is pressed.
      • If you select Always, the machine always dials a prefix number before the fax number.
   2. Press Dial Prefix.
       
   3. Enter the prefix number using the touchscreen, and then press OK.
      Use the numbers 0 to 9, #, * and !. You cannot use ! with any other numbers or characters.
4. Press (Home).