Can't make or receive calls

[Barugon]

I think this is the relevant post (for anyone else looking):

VoLTE support progress

The modem defaults to VoLTE being disabled, because being enabled on networks that don’t support VoLTE could result in the phone not working at all from my understanding. Here are the steps to enable/disable that mode but please be very careful with this and double check everything you are typing. To Enable VoLTE: sudo screen /dev/ttyUSB3 ATE AT+CGDCONT=2,"IPV4V6","ims" AT$QCPDPIMSCFGE=2,1,0,0 ATE0 power cycle modem with kill switch To Disable VoLTE: sudo screen /dev/ttyUSB3 ATE A…

[edit] This got it working for me.