Fring is a mobile application that allows users to communicated with others on various networks through mobile internet connection announced today the launch of FringOut, a VoIP service. FringOut sounds similar to SkypeOut, this new service allows users to call just any phone in the world starting from 1c/min.
FringOut currently supported on Nokia Symbian S60 devices, but hold on iPhone and Android versions will follow soon.
Call rates start from 1c/min, there is a rate calculator on fring site if you want to know the exact call rates to a particular country. To use the feature make sure you have latest fring version and signup for fringout service and of course you need S60 phone for the moment.