FRITZ!Fon C4 Service - Knowledge Base

FRITZ!Fon C4 Service
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Answering machine symbol flashes continuously

The symbol for the answering machine flashes continuously on the display of your FRITZ!Fon although no one leaves a message.


  • Due to DECT Eco, the FRITZ!Fon switches to standby mode while recording and misses the signal that the recording is over.

Turning the telephone off and then on again

Restarting the telephone solves the problem temporarily. For technical reasons, it may occur again when DECT Eco is enabled. To permanently resolve the problem, you can enable the call screening function because this prevents the telephone from switching to standby mode while recording:

  1. Hold down the end call key (red handset) to turn the telephone off, and then turn it on again.