Download Viber for Nokia Asha 308, Asha 310 and Asha 311 mobile phones.
Viber is an application that lets you call and send free messages to other users on any device in any country.
Viber synchronizes your contacts, messages, call history with your mobile, so that you can start a conversation on the mobile app Viber and continue on your PC.
Today, Viber has more than 200 million users. This is undoubtedly one of the most credible alternative to Skype.