Viber updates Windows Phone 7.5 app too with HD calling support. You can download the updated Viber app with HD calling support for Windows Phone 7.5 from Windows Phone Store for free.
The new and redesigned Viber for Windows Phone 7.5 offers free calls with HD sound. Connect in group conversations with up to 40 people. The app, which syncs directly with your address book, also makes it easy to share photos and your location.
|Viber updates Windows Phone 7.5 app too with HD calling support|