kurtrolf

I have been using rebtel since december -10. It is very easy to use, my rebtel app import chosen international numbers to the app, then you do as usual. Search in your contacts and you find the person you want to call, and under your friends number you will find a rebtelnumber that you call.
After calling my friend couple of times i got an email from rebtel with an local number which my friend abroad can call as a "collectcall", he only pay a local call and the rest is debited to my rebtelaccount.
It is also possible send sms with rebtel, when you send a sms to your friend abroad, you can choose send with link or without link. this means that your friend can answer you and the cost will be debited to your account.
I have been using other similar "solutions" to call another country but rebtel is the one i like most.
the only negative i can say is that one mobilenumber i call sometimes, does not have very good sound(but yet better than the company i used to use before).
Maybe it is because of the celphone my friend has.. because all other calls has very good sound.