After flashing eOS on my Fairphone3+, everything worked perfectly as far as I could test it. (camera, telephone, Internet, App-shop…) Next day I could not make or receive any phone call.
Mobile data is still working. If I call it stays in status "connecting"and after a minute it stops. If someone calls he gets the information that I am not available although my phone pretends to be connected to my provider. I have to mention, that we had the same issue with lineage OS on a fairphone 2.
Why could I get and put phone calls for one day? Why do I have still mobile data but no phone connection? Did any body else flash eOS on a FP3