Awaaz is a new app for Android just 1 mb in size
That let’s you make free calls to your friends ,
This app acts as a plugin for your phone ,both you and your friends need to install the app ,
And enjoy free unlimited callings
Download this app here
This app doesn’t requires any signup just open the app and input your mobile number
And you have configured the app .
This app automatically handles the calls that fall within its scope