Did you know that you can avoid paying any fees to Rebtel?
Call your friend on your local number. When your friend answers, ask them to hang up within 10 seconds, and call you back while you stay on the line. You'll be connected after you hear a short sound. The international part of the call will be free. It's sounds weird but it works.
Don’t forget that you and your friend also pay your operator for local calls. (If you and your friend both have inclusive minutes with your contracts, then these calls will be free.)
You and your friend must both live in one of the 51 Rebtel countries.
Click on the link to see if you're in a Rebtel country.