Although it didn't work pretty well on cellular networks. Viber supports video and audio calls, and the audio quality was good enough, even better than regular calls.

Viber support one-to-one conversations as well as group conversations up to a maximum limit of 250 persons. You can start a conversation by simply searching for a contact, and sending the first message. It also syncs all your contacts and detects who in your address book is already using Viber. Viber registers your account with your phone number, just like Whatsapp. You can download and use Viber for Android phones, iPhones, Windows Phones and you can also use Viber on the desktop using Viber's desktop app. Let's just say that it's a bundle of the good things collected from various other apps. It has almost all features that a modern day personal communication apps like WhatsApp and Skype have. It is developed by Viber Media and was first launched in 2016. Viber is one of the first apps/services that gave you the power of text messaging on your mobile phones without using the costly SMS bundles. You will find instructions at the end of this post on how to install it your PC and try it out before installing it on your phones. Introduced by Viber Media for Android mobile phone, iOS, and Windows phones, you can also install Viber on PC or laptop. Download Viber for PC free at BrowserCam.

Viber messenger free download