With the market for dual mode (Cellular and Wi-Fi) smartphones taking off. Nokia is currently the market leader to date and have shipped more than 70 million devices using the S60 platform. The 'S' stands for Symbian, which is the open operating system installed on these devices.

Making cheap VoIP calls in fixed locations using your cell phone is convenient, but the industry has increased its goal to integrate seamless roaming between networks is what users really want.

Nokia's smartphones are targeted at the business professional and Cicero Networks, based in Dublin, Ireland. They have launched what they believe is the first VCC (Voice Call Continuity) solution for the Eseries and nSeries devices. Cicero Networks also have a server-based solution, enablin seamless roaming for users between Wi-Fi and cellular networks.

Calls are automatically routed over the available network and routing rules are applied to ensure the optimum cost / quality on the placed calls. The CiceroPhone enables routing decisions to be controlled on the handset and optimized for certain numbers or ranges of numbers for specific networks.

You can read more on this solution which will be covered in detail in the Nov. issue of Von Magazine under "VoIP Goes Wide Area".