1-Just Go To
3-Select Your Friends Country and input his/her Phone Number in the box.
4-Now Click on "Submit"
5-After click on " Submit " button That site will be give you a Mobile Number. Just missed call on that number. you will not charge for missed call.
6-Now wait for about 5 Seconds...You will get a Call just Recieved that call and Talk To Your friend 25minuts 100% free.