Quote Originally Posted by SoNic67 View Post
If you have a local SIM and the network has VoLTE (not every carrier has it activated). See below, I usually use Vodafone SIM's (Italy, Spain, UK):
https://en.wikipedia.org/wiki/List_o...orks_in_Europe
So if network supports volte u get automatic volte on U1 not like in the US somehow needs to be certified?