Viber Out allows you to call any mobile or landline from Viber 4.1 Brahmnoor Singh December 10, 2013 App Viber, has launched Viber Out feature on its birthday.This feature allows users to call any landline, or mobile number similar to Skype. This feature launches on the eve of the third birthday of Viber. The feature has been introduced in the app with Viber 4.1, which has been launched for iOS and Android. To promote itself, and beat competition, Viber has released a complete chart showing the cost per call of Viber as compared to Skype. Users can make in-app purchases in Viber to make calls to landlines and phones. All the usual Viber to Viber calls are free of cost. The new update also brings Sticker Market to the popular VoIP app. Leave a Reply Cancel Reply Your email address will not be published.CommentName Email Website Notify me of follow-up comments by email. Notify me of new posts by email.