MFC-8710DW

FAQs & Troubleshooting

FAQs & Troubleshooting

My Brother machine is dialing the wrong number or is not dialing the number I entered or I receive a busy signal or recording when trying to send faxes.

If your Brother machine consistently dials numbers other than the ones you have entered or you receive a busy signal or recording when trying to send faxes, you may have programmed a Dial Prefix on the machine. The Dial Prefix is a feature that automatically dials a user-defined number before every fax you send.



For example, if your telephone system requires you to dial 9 to access an outside line, then you can program the Dial Prefix feature to automatically dial 9 every time you send a fax.



To change or delete the prefix number programmed in your Brother machine follow these steps:
*If your Brother machine has a touchscreen, please follow the steps of "For Touchscreen models" below.

  1. Press the MENU key.

  2. Press the UP OR DOWN ARROW key to choose Initial Setup.

  3. Press the OK key.

  4. Press the UP OR DOWN ARROW key to choose Dial Prefix.

  5. Press the OK key.

  6. Do one following:

    • If you want to use the Dial Prefix feature, Press the UP OR DOWN ARROW key to choose ON.

      Press the OK key. Go to Step 7.

    • If you do not want to use the Dial Prefix feature, press the UP OR DOWN ARROW key to choose Off.

      Press the OK key. Go to Sep 11.

  7. Press the UP OR DOWN ARROW key to choose Change.

  8. Press the OK key.

  9. Press the Clear/Back key to delete the prefix number displayed on the LCD.

  10. Enter a new prefix number (up to 5 digits) and press the OK key.

  11. Press STOP/EXIT.


<For Touchscreen models>
  1. Press MENU.

  2. Press the UP OR DOWN ARROW key to display Initial Setup.

  3. Press Initial Setup.

  4. Press the UP OR DOWN ARROW key to display Dial Prefix.

  5. Press Dial Prefix.

  6. Do one of the following:

    • If you want to use the Dial Prefix feature, press On. Go to Step 7.

    • If you do not want to use the Dial Prefix feature, press Off. Go to Step 11.


  7. Press Dial Prefix.

  8. Press the Back Space button image to delete the prefix number displayed on the Touchscreen.

  9. Enter the prefix number (up to 5 digits) by pressing the buttons on the Touchscreen.

  10. Press OK.

  11. Press Stop/Exit.

If your question was not answered, have you checked other FAQs?

Have you checked the manuals?

If you need further assistance, please contact Brother customer service:

Related Models

MFC-8510DN, MFC-8710DW, MFC-8810DW, MFC-8910DW, MFC-8950DW, MFC-8950DWT, MFC-9970CDW, MFC-J5910DW, MFC-J6510DW, MFC-J6710DW, MFC-J6910DW

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