How to make free calls from Number tank..

Hey friend know How to make free calls from Number tank..

Simple steps to Get It : 

1. Firstly goto number tank   http://www.numbertank.com/,
2. Now Create an account (once you get an invitation from friend)

3. Register with your email and verify your number,
4. Now send the invitation link to your friends,

5. Once your friends join ,they will appear in your account
You will get free 30 minutes daily,which will get carried forward if unused, upto a max of 100 minutes.

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