Call through is a way of establishing a call in two steps. You call the FRITZ!Box from anywhere, enter a PIN and hear a dial tone. Then you enter the destination number and are routed to the destination.

 Enable call through

Security Settings

 Only accept calls from the following numbers

The PBX linking configured in your FRITZ!Box is no longer supported. To reset the PBX linking settings that are still enabled, please click the button below.