Apple has approved for Rebtel to have an iPhone app that would allow users make calls to anywhere in the world without having to search for a Wi-Fi hot spot. Further, there are free calls available within any of the 53 countries where Rebtel is available. The app is avialable at itune store http://bit.ly/RebtelApp.

To use the Rebtel iPhone app, just open the app, select the phone number of an international friend from your usual iPhone address book or type in their number, tap the Call with Rebtel button, and Rebtel takes over from there to connect the call instantly.