FRITZ!Box 7490 Service - Knowledge Base

FRITZ!Box 7490 Service
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Speedphone is deregistered after a FRITZ!Box restart

After the FRITZ!Box is restarted after a FRITZ!OS update, the Speedphone no longer connects to the FRITZ!Box automatically and you have to register it again.

Cause

  • The Speedphone does not support the expanded security functions for the DECT connection.

Note:The configuration procedure and notes on functions given in this guide refer to the latest FRITZ!OS for your FRITZ!Box.

1 Disabling expanded security functions

  1. Click "DECT" in the FRITZ!Box user interface.
  2. Click "Base Station" in the "DECT" menu.
  3. Disable the expanded security functions in the "Security" section.
  4. Click "Apply" to save the settings.

After disabling the expanded security functions, you must register your Speedphone with the FRITZ!Box once.