Note: To install you should have root (sudo) access

Some features of Viber app are Audio and video calls, Chat Extensions, End-to-end encryption, international calls to any landline or mobile at low rates, search, find, and share music, GIFs, videos, restaurants, events, hotels and more. Therefore, free VoIP applications on mobile phones are becoming more and more popular. Nowadays, smartphones are becoming more and more powerful, and so does the mobile Internet. Viber also supports multiple languages and Business accounts. Users can make free calls and text messages, pictures, videos and audio media with other users over the wireless network or using mobile internet connection. Its users do not need to pay anything except the internet package just like WhatsApp. It first launched a version running on the iPhone and later Viber for mobile is also available as an Android app which further developed as Viber for Desktop application to run on Windows 10/7/XP, MacOS and Linux (Ubuntu and Fedora).

Viber is a cross-platform VoIP and instant messaging software for smartphones that work on 2G/3G/4G and WiFi networks.

Tutorial to install Viber Linux on Ubuntu 19.04, 18.04 LTS, 16.04 including Debian, Linux Mint and Elementary OS as WhatsApp alternative for chat and Video/Audio Calls.

Viber for ubuntu