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Knowledge document #359
FRITZ!Fon C6
This support document is available for the following products:

FRITZ!Fon reports "Function not possible during repeater operation"

When you try to listen to internet radio or podcasts, make a call in HD, or update the software with a FRITZ!Fon, the telephone displays one of the following messages:

  • "Function not possible during repeater operation"
  • "via Reject Repeater not possible"

1 Cannot use the function for technical reasons

If you are using a DECT repeater from another manufacturer to extend the DECT range of your FRITZ!Box, the option "Permit non-encrypted DECT connections" must be enabled in the FRITZ!Box. For technical reasons, some functions are no longer available when this option is enabled. A list of functions that are not supported can be found here.

Important:If you are not using a DECT repeater from another manufacturer (anymore) or are using a FRITZ!DECT Repeater or a FRITZ!Box in DECT repeater mode, enable the setting "Permit only secure DECT connections" in the FRITZ!Box user interface under "(Telephony) > DECT > Base Station". FRITZ!DECT Repeaters and FRITZ!Boxes in DECT repeater mode support encrypted connections.