Google is allowing users in India the ability to make international voice calls via Hangouts. This service is already available for users living in the US and Canada.
“Starting today, the Hangouts app on your phone will help you stay connected with your family and friends around the world in more ways than ever. Now you can make voice calls to phone numbers outside of India on Android”
posted Google India in a Goolge+ post.
In order to place a Hangouts call from an Android device, you need to be sure you have the Hangouts dialer app installed in addition to the latest version of Hangouts app. Also, Google is offering only one minute free voice call to any 24 countries and they will be charged for every minute after that. You can check the full list here. Calls that are eligible for the free minute will display “first minute free” on the call screen.