Thanks @haagch, do you have any advice about this post:

https://forums.ubports.com/post/89111

it may depend on the phone hardware and the provider of course.

Hello, I'm still interested in getting a phone with Ubuntu Touch *and* Volte (4G telephony in other words) Nothing has changed in the pages I linked to. However, while reading about another (competing) product announce, I noticed they got Volte somewhat working for a pure Linux phone. Soooo. I said ...

Hello Looking at the X* phone specifications: https://volla.online/en/volla-phone-22/ and https://volla.online/en/volla-phone-x23/ I see that X22 is specified in 'wireless connectivity' to not work with VoLTE, but there is no 'wireless connectivity' item in X23. I think to understand that because Vo...