I’m flabbergasted. Since a few days my FP3 ceased to display the caller number or name, if that is in the phone book. It just displays “Unbekannt” (unknown). The call connects OK, but I would prefer to known who is calling before I pick up.
With considerable fumbling, I put the SIM card in my old aka backup phone (it needs a form factor adapter for mini SIM) and called that. It did not have a problem. When I put the SIM card back in the FP3, the problem came back.
So it must be something in the FP3. I never heard about caller ID suppression for incoming calls. And that would probably happen on the provider side.
Any ideas apart from factory reset?