@Moem what I understand from the operator's website, VoLTE is an option in phones that support it. But if the problem is that UB does not support VoLTE, is that why I don't have mobile Internet and I can't read the IMEI number after entering *#06#?

I don't know if this is the right place, but I couldn't find a better one.
I am looking for a way to run anki on ubuntu touch. Anyone know any solution?

I have a m2003j15sg xiaomi note 9. The installer recognized the device as m2003j15sc MERLIN and I installed ubports. But it is not possible to use the device as a phone/call/sms.
jakieś sugestje pomysły, diy?