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Ask Maggie: AT&T to cut T-Mobile Wi-Fi call feature?

T-Mobile USA offers the UMA Wi-Fi calling feature on several more Android phones. An earlier version of this story incorrectly said that the feature was limited to two phones.

T-Mobile USA offers the UMA Wi-Fi calling feature on several more Android phones. An earlier version of this story incorrectly said that the feature was limited to two phones. Read the updated story here.