fring Screenshot

fring is a mobile application that allows you to make mobile calls and send instant messages (chat) to other fring users and PC-based VoIP services such as Skype and Google Talk at no extra cost beyond your existing data plan. fring calls cost nothing extra because they utilize GPRS, 3G and Wi-Fi mobile internet connections.
All you need to use fring is a 3G handset optimized for 3G or Wi-Fi networks (see list of supported devices) with Internet connectivity that is already available from your mobile service provider (how do I know?) or through your nearest Wi-Fi hotspot. fring can be simply downloaded into your handset via SMS received from another fringster or from our website. It’s as easy as downloading a ring tone.

fring roams seamlessly between Wi-Fi and 3G networks while bypassing traditional mobile voice and SMS text messaging services. This means that fring enables mobile-to-mobile calls, mobile-to-landline calls, and mobile-to-PC calls including integration into Skype and Google Talk wherever you are.
fring , patent pending P2P Mobile VoIP technology, works over GPRS, 3G and Wi-Fi networks, and is a PC-independent, mobile VoIP service with no need for proprietary hardware.

fring is easy to use, delivers full-duplex voice quality and is also fully interoperable with other PC-based VoIP providers.