Nokia is the world’s largest mobile maker and they have just started testing technology, which would enable the users to roam seamlessly between phone networks and local wireless hotspots powered by Wi-Fi connectivity.

The company said in a statement that they would get around fifty families in Oulu near the polar circle in northern Finland to test out these technical products over the next two months.

These handsets are typically called unlicensed mobile access, or UMA and these help the consumer to make cheap calls when they are inside a Wi-Fi hotspot as it uses VoIP technology in that scenario.

And once the user moves out of the internet network, the phone automatically switches to a GSM, GPRS or UMTS mobile phone network, which is available at that location.

These mobile phones are likely to benefit those consumers who have wi-fi connectivity at home, as they are likely to save a lot of money on making phone calls using the VoIP network.