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If you are a T-Mobile subscriber and use one of the mobile phones that support UMA, now all your calls made over the Wi-Fi are free. Earlier, all WiFi-based calls counted… Read more »

Unlicensed Mobile Access (UMA), a technology that allows mobile users to send and received phone calls via Wi-Fi without needing special Femtocells, has been a key distinguishing feature on T-Mobile’s BlackBerry… Read more »