Viber is an excellent application that lets you to make free phone calls and send text messages from your iphone and android phone to anyone who also has the application installed. The great thing about this VoIP app is you can make a call or send text to any Viber user, anywhere in the world for free over 3G or WiFi. Viber is similar to Skype, but you no need to sign up, does not require a PIN. Just register your phone number once, and you'll receive an SMS that contains code. You no need to sign in again into viber after Enter the code you have received. Viber integrates with your existing address book and display its logo next to any contact who also installed Viber on their phone. You can also make calls to others who does not installed Viber on their phone at a regular call cost. The quality of the calls are excellent with great sound quality.
Viber VOIP application is available for free for iPhone and Android Phones and excepected to available on Blackberry soon.
Download Viber on Android
Download Viber on iPhone
