Windows Mobile 5.0 and 6.0 series devices.

People who use Fring can now choose to communicate for free between fring, Skype, Google Talk, MSN Messenger, hundreds of SIP providers and twitter on around 300 Windows Mobile phones and pocket PCs in addition to 20+ Nokia devices over any 3G, GPRS or Wi-Fi Internet connection.

Fring is a free, downloadable PC mobile phone application.