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Number of telephony devices that can be used with the FRITZ!Box

You can use various telephony devices with the FRITZ!Box, for example telephones, fax machines, answering machines, or telephone systems (PBXs). How many devices can be used depends on the type of connection.

If you set up an additional FRITZ!Box as a Mesh Repeater, the number of possible devices increases according to the number possible for that particular FRITZ!Box model.

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

1 DECT devices

The following DECT devices for telephony can be registered with the FRITZ!Box at the same time:

2 IP telephones and IP door intercom systems

You can register up to ten IP telephones (for example FRITZ!App Fon) or IP door intercom systems with the FRITZ!Box.

3 Analog devices

You can connect an analog device, for example a telephone, fax machine or door intercom system to the FRITZ!Box. The FRITZ!Box has one "FON 1" socket for analog devices with an RJ11 plug and one for devices with a TAE plug. One "FON 1" socket must remain free (unassigned).

4 Integrated answering machine and fax function

You can use the FRITZ!Box as a fax and answering machine, without having to connect any additional devices. The FRITZ!Box can be used to send and receive faxes and you can configure up to five different answering machines.