EE will switch some of its customers to wi-fi enabled calls to help combat mobile signal dead spots. The UK network suggests the move will particularly benefit people who fail to get a connection or experience dropped calls in their homes and offices. Other firms already offer a similar service via apps. Wi-fi Calling facility would initially be limited to pay monthly subscribers using Samsung's Galaxy S6 and S5 phones and Microsoft's new Lumia 640, although the BBC understands the iPhone 5S and newer Apple handsets will also be supported. Since it requires specific mobile data components to be built into the devices, it cannot be extended to other older models.
