Mobile phones, smartphones and tablets are now the most required devices by many people, they are the best devices to have a communication with the friends and families. Instead to use normal calls, why not to use calls through the data network; after been available since one year ago for Linux, now the Viber version 4.2 has arrived to Linux.
If didn’t work with Viber, well, I can say this is one the most fantastic free application for communication. Viber allows you to make free calls and send free text messages between users that have the same application installed.
Check this out!