Would love an answer to this as well. It looks like it has the supported bands but the main question is will it work with VOLTE out of the box.Im seeing mixed reports... any info ??
To piggy back will it work on AT&T?
The P20 does have compatible TMobile bands. The question really is whether it will support VOLTE out of the box. Sadly, it probably won't.I'd say there's a better chance that they are compatible then not. They're both gsm but I didn't check the specifics.