In the past, users had the opportunity to pay $10 per month for the UMA service that gave you unlimited minutes when calls were handled through the WiFi UMA technology. That is now gone and the Wi-Fi Calling service of today is now a no-cost service that uses up your included plan minutes, but gives you the ability to make calls through WiFi in areas where you have low cellular signal.
THe solution for Android is powered by Kineto's Smart Wi-Fi application and it will allow Android T-Mobile owners to use WiFi for voice calls and text messages. Devices that T-Mobile specifically lists as getting support are the new myTouch and Motorola Defy, which are both expected this holiday season.
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