T-Mobile says its wireless network will support the continuity feature that’s part of iOS 9. They are the only US carrier to do so.
Apple already allows devices (iPhone, iPad, Mac) operating on the same WiFi network to send/receive calls and iMessages. For example, someone using their Mac at home can answer an incoming voice call on their computer rather than iPhone.
With iOS 9, this continuity feature is being extended to cellular networks. This means a person who leaves their iPhone at home will still be able to send/receive calls and messages from their other Apple devices as long as they have a cellular network connection.
T-Mobile said it will support the feature for those testing iOS 9 beta, and will support it for all users when Apple releases the final version of iOS 9 later this year.
