Truphone is the first global MVNO to pass the GSMA Interoperability Testing service, having demonstrated that their networks run VoLTE smoothly in five major markets – Germany, the Netherlands, the USA, Hong Kong and Portugal.

Truphone is the first global MVNO to pass the GSMA Interoperability Testing service, having demonstrated that their networks run VoLTE smoothly in five major markets – Germany, the Netherlands, the USA, Hong Kong and Portugal.