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Knowledge document #3601

Setting up FRITZ!Box for use with a Deutsche Glasfaser line

The FRITZ!Box is optimally prepared for use with Deutsche Glasfaser. Simply connect the FRITZ!Box to the fiber optic modem, select Deutsche Glasfaser as the internet service provider in the FRITZ!Box, and set up telephony. The complete FRITZ!Box range of functions for internet, telephony, and multimedia is then available to all of the devices in your home network without restriction.

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

  1. Use a network cable to connect the "WAN" port on the FRITZ!Box to the LAN port on the fiber optic modem (ONT), for example use the network cable included with delivery.

2 Configuring the internet connection in the FRITZ!Box

  1. Open the FRITZ!Box user interface.
  2. Enter the FRITZ!Box password on the bottom of the device and click "Log In".
  3. Click "Internet" and then "Account Information".
  4. Select "DSL or fiber optic modem" from the drop-down list "Internet connection via".
  5. Select "Deutsche Glasfaser".
  6. Click "Apply" to save the settings.

Now the FRITZ!Box checks whether the internet connection can be established. Configuration is completed as soon as the message "The internet connection check was successful" is displayed.

Important:If the internet connection check fails, your internet access may not have been activated yet. In this case, contact Deutsche Glasfaser.

3 Setting up telephony in the FRITZ!Box

Having your login information ready

  1. Have the login information for telephony that you received from Deutsche Glasfaser ready (for example the username and password).

    Note:You can find the login data in your contract documents. If you did not receive any login data, call Deutsche Glasfaser's customer service at 02861 890860.

Configuring telephone numbers

  1. Click "Telephony" in the FRITZ!Box user interface.
  2. Click "Telephone Numbers" in the "Telephony" menu.
  3. Click the "New Telephone Number" button.
  4. Select "Deutsche Glasfaser" from the drop-down list.
  5. Enter the login information supplied by Deutsche Glasfaser in the corresponding fields.
  6. Click "Next" and follow the wizard's instructions.

Assigning telephone numbers

  1. Click "Telephony" in the FRITZ!Box user interface.
  2. Click "Telephony Devices" in the "Telephony" menu.
  3. Click the (Edit) button for the respective telephony device.

    Important:If the telephony device was not configured yet, click the "Configure New Device" button and follow the wizard's instructions.

  4. From the drop-down list "Outgoing Calls", select the number to be used by the telephony device for making outgoing calls. If you do not select a telephone number, the number entered under "Telephone Numbers > Line Settings" is used for making outgoing calls.
  5. Select the telephone numbers to which the telephony device should react when you receive calls. You can select up to ten numbers (including the number for outgoing calls).
  6. Click on "OK" to save the settings.