If you have a smartphone that supports UMA and WiFI on T-Mobile USA, you can now make free phone calls. Calls made over WiFi used to count towards your minute plan, but that is no longer the case.
“T-Mobile is excited to expand our Wi-Fi Calling feature, a unique and valuable service T-Mobile has been offering customers for over three years. Starting today, T-Mobile customers can add Free Wi-Fi Calling to their rate plan ? at no additional charge ? to place calls over Wi-Fi without deducting from their allotment of minutes. This new feature is available at T-Mobile retail stores to all customers on Even More and Even More Plus Postpaid rate plans who have Wi-Fi Calling capable handsets,” said T-Mobile in a statement.
The free WiFi calling is applicable to Android phones that have the Smart WiFi app pre-installed and pre-configured on T-Mobile.