ToolBox -

How to configure automatic fax detection on a FRITZ!Box

Automatic fax detection will check whether or not an incoming call is a fax or a telephone call. Callers will then be able to leave a message and a fax will be forwarded to the fax function, which you can read about here.

How to Enable:

Before you continue, ensure that you have enabled the fax function of the FRITZ!Box.


  • From the Telephony menu, open the Telephony Devices menu.


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  • Select the “Edit” button (This will look like a pencil) to edit the fax function settings.


  • Now select the “Help” button. This will redirect you to a help page.



  • Follow the instructions on the help page. These will help you to set up automatic fax detection.


If you have found this guide unhelpful and you are still experiencing difficulties with your FRITZ!Box, please call us at Wi-Manx Support on 641188.