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Dokument informacyjny #108

Setting up an external fax in the FRITZ!Box

You can use a fax machine connected to the analog extension of your FRITZ!Box to send and receive faxes over the internet.

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

1 Connecting fax machine to the FRITZ!Box

  1. Connect the fax machine to the analog extension on your FRITZ!Box.

    Important:There are two different types of "FON" sockets: One for telephony devices with a TAE plug and one for devices with an RJ11 plug. Only one of the two "FON" sockets may be used at once. The other "FON" socket must remain free (unused).

  2. If the fax machine is an all-in-one printer with an integrated fax machine, also use a network cable or Wi-Fi to connect the printer to the home network of the FRITZ!Box and configure the printer as a network printer.

2 Enabling fax transmission with T.38

If you use an internet telephone number for faxing, you must enable T.38 (fax over IP) in the FRITZ!Box for fax transmission. With T.38, a special network protocol is used for fax transmission instead of signal tones. This makes transmission significantly less susceptible to interference:

  1. Click "Telephony" in the FRITZ!Box user interface.
  2. Click "Telephone Numbers" in the "Telephony" menu.
  3. Click on the "Line Settings" tab.
  4. Click "Changing the Settings" in the "Telephony connection" section.
  5. Enable the option "Fax transmission using T.38".
  6. Click "Apply" to save the settings.

3 Reconfiguring the fax machine

  1. Click "Telephony" in the FRITZ!Box user interface.
  2. Click "Telephony Devices" in the "Telephony" menu.
  3. If the fax machine is already displayed in the list of telephony devices, click the (Delete) button for the fax machine.
  4. Reconfigure the fax machine: Click the "Configure New Device" button and follow the instructions.
  5. If you cannot select the socket the fax machine is connected to when configuring it, another telephony device was already configured for that socket. Delete that device.



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