Clean fresh install of openSUSE-Tumbleweed-ARM-PHOSH-pinephone.aarch64-2023.03.02-Build73.8.raw. First call using the phone app works. Then the carrier signal turns off and no more calls. I’m using a Telenor account.
@ionmich I would suggest either the ARM mailing list https://firstname.lastname@example.org/ or IRC #opensuse-arm or the equivalent Matrix/Discord channel (I only use IRC) as you more likely to get the attention of other users/developers to isolate your issues.
Sad to say, but at least informative. Quoted from the Pinephone forum by a user. " I am an openSUSE enthusiast, but there isn’t anyone working to get it running smooth on the Pinephone." So, time to move that project.