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Knowledge document #359
FRITZ!DECT Repeater 100
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 Configuring the FRITZ!Box

DECT encryption must be enabled to use convenience functions with your FRITZ!Fon:

  1. Click "Telephony" in the FRITZ!Box user interface.
  2. Click "DECT" in the "Telephony" menu.
  3. Enable the option "Permit only secure DECT connections (recommended)" in the section "Security".
  4. Click "Apply" to save the settings.
  5. If the option was disabled, you must then restart the FRITZ!Box once using the user interface ("System > Backup > Restart").

2 Re-registering a repeater

  1. Re-register all of the repeaters.