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Connecting the FRITZ!Box to the DSL Line

You want to connect the FRITZ!Box with a DSL line? ✔ It's easy with this step-by-step guide.

You can connect your FRITZ!Box with a DSL line and use it for internet access and internet telephony. The FRITZ!Box cannot be connected with an additional telephone line (analog / ISDN).


  • The DSL line must comply with a DSL standard supported by the FRITZ!Box.

Note:All instructions on configuration and settings given in this guide refer to the latest FRITZ!OS for the FRITZ!Box.

1 Connecting the FRITZ!Box

Note:The FRITZ!Box comes with the cables required for use in the country in which it was purchased. Other cables can be purchased from an electronics retailer, or you can make your own using the guide Assignment of cables, adapters, and sockets. Our sales team can provide you with information on country-specific FRITZ!Box models.

  1. Insert the DSL cable (Y cable) into the "DSL" socket on the FRITZ!Box.
  2. Insert one of the shorter ends of the cable into the DSL socket and leave the other end of the cable hanging (see left fig.). If you are using the FRITZ!Box on a VDSL bonding line, also insert the second end of the cable into the VDSL bonding socket (see right fig.).

    Fig.: Connecting FRITZ!Box with an IP-based DSL line (left) or a VDSL bonding line (right)

2 Setting the country of use

  1. Click "System" in the FRITZ!Box user interface.
  2. Click "Region and Language" in the "System" menu.
  3. Click on the "Regional Options" tab.
  4. Select your country from the drop-down list. If your country is not displayed, select "Other country".

    Important:When the regional options are changed, the telephone settings (for example telephony devices, call diversion settings, dialing rules) are reset and must be reconfigured.

  5. Click "Apply" to save the settings.