@lakotaubp For what it's worth, on my Faiphone 4 and Ubuntu Touch calls work fine.

@seileren Hi!

I might be hijacking this thread a bit, but you mentioned that you'd rolled back your Fairphone 4 to standard Android. Could you tell me how you did it or point me to a website with instructions or something please? I tried to follow the instructions for "offline installation" of Fairphone OS but the installation script gets stuck at Step 8. I'm on Linux.

https://support.fairphone.com/hc/en-us/articles/4436167982097