FRITZ!Fon does not turn onThe FRITZ!Fon does not turn on anymore. When you try to turn the telephone on, the message key and end call key light up red, but the display remains black and the telephone does not work.Simply proceed as described below. After each measure, check whether the problem is solved.1 Charging the rechargeable battery Plug in the charging station. Make sure that both plugs on...
> https://en.avm.de/service/knowledge-base/dok/FRITZ-Fon-X6/3325_FRITZ-Fon-does-not-turn-on/
Cannot make outgoing callsYou can't make outgoing calls? The telephone does not work or the telephone number is not registered? ✔ Here's what to do.Outgoing calls cannot be made over the internet with one or more telephones connected to the FRITZ!Box. It is also possible that only certain telephone numbers cannot be called. The problem either occurs sporadically or all the time. When it occurs,...
> https://en.avm.de/service/knowledge-base/dok/FRITZ-Box-7690/28_Cannot-make-outgoing-calls/