@keneda It would be nice if someone who is in the know-how could figure out how to make VoLTE a reality for Ubuntu Touch.

@alyosha Reverting to 3g worked a few days for me then it was shut down. I had Cricket wireless (ATT). I specifically bought a Pixel 3a because it said that it would work with the network. It was working just fine (weeks after the supposed shutdown), and then all of a sudden I could not make any calls or texts. My account was automatically terminated by Cricket. Switching to Net10 (Verizon) didn't work out that well in the beginning. I've tried several times to reinstall UT using UBports to no avail. Spoke to Net10 about the SIM card not being recognized. They could not resolve the problem either. I tried one last time using UBports and instead of completing the install I did a factory reset. I know have phone service, and hopefully for a long time. There is a triangle with an 'r' at the top of the screen. Possibly for roaming? Also the carrier doesn't say NET 10, it's 'Home'.