experience HD Voice on Switzerland's first HD network

First, HD TV made things look better. Now HD can make things sound better, too. High Definition Voice for clear and crisp voice quality without annoying background noise. Whether you are walking down the street, in the office or on the train, HD Voice is the perfect solution for all your calls. Mobile phones with HD Voice also fade out disruptive background noise.

HD Voice is a free service. Why not try it out for yourself?

compatible HD Voice mobile phones

watch the video