Let’s revisit this. Multiple iPhone 12 models, pro, pro Max and mini. All on TMobile. All get call failed multiple times a day, calls connect but no sound, call fail in middle of calls, hotspot pop up after calls, iMessage doesn’t go through.
I have setup as new, reset network settings, got new sim, downloaded new iOS version from finder, hardware test shows no errors but every 12 we have all 7 have issues. Others on other networks have same issues.
Will changing phones help? Two run dual sim and can’t even get 5G. Last week Apple tech said they are aware and update will fix it but 14.3 did nothing. I would imagine phone call issues and text would be super priority.
ANY help is appreciated.