ROK Group launches mobile VoIP

UK-based mobile applications developer

has launched what it claims to be the worlds first free no-contract mobile-to-mobile voice over internet protocol (VoIP) application.

ROK Viper offers free software which connects compatible handsets wirelessly to broadband via Bluetooth on a user's handset and computer. It then uses the internet to carry the call rather than a mobile network.

Initially compatible with several Bluetooth-enabled Nokia handsets, ROK aim to add more than 100 mobile handsets by the end of the year. Java-powered handsets and Windows compatible devices will be included over the next 3 months.

ROK claims credit for creating technologies for the first mass-market mobile TV over 2.5G GPRS and copy-protected movies-on-memory-cards for play on mobile phones.