AT&T granted Wi-Fi calling waiver, calls for investigation over T-Mobile sidestepping FCC

AT&T was officially granted an FCC waiver this week to enable Wi-Fi calling for its customers with supported devices like iPhones running iOS 9. Wi-Fi Calling first appeared during the iOS 9 beta period and remained functional for those who enabled it previously, but AT&T stopped sign-ups for the feature once iOS 9 was publicly released due to […]