giving subscribers the ability to place calls via their home wireless network and bypass its own LTE signal. Rivals T-Mobile and Sprint have offered Wi-Fi calling on compatible devices for some time.
'Number of active devices' is quite useless number. A simple desktop setup (macbook, studio display, keyboard, mouse) is already 4 active devices. Much more interesting would be the number of active users, especially as a growth indicator....
Affected iPhone models include at least the 5s, 6, and 6 Plus. The issue is also impacting multiple versions of iOS 8 through iOS 8.3. Not likely to be VoLTE either, or Verizon phones would be affected too. Not to mention the 5S wouldn't be affected. I've had the blue...