Rebtel is a unique way of making cheap international calls from your cellphone. Just use your normal cellphone to make very inexpensive international calls.

How it works
1) You give them the phone number of a friend in another country, and they give you a local number for your friend.

2) Save this number on your mobile so you can call your friend whenever you want, for a fraction of your normal international rate.

Rates
Rates are very comparable to most VOIP services. China is 1.9c per minute, the same with the US, the UK, and even poland. For the full list of rates, click here.