On T-Mobile with iOS 8? You can turn on Wi-Fi Calling by going to Settings > Phone > Wi-Fi Calls. Personally confirmed with a 5S.
Brent Lineberry
Web and app developer. Coffee, beer, and running, in any order.
Web and app developer. Coffee, beer, and running, in any order.
On T-Mobile with iOS 8? You can turn on Wi-Fi Calling by going to Settings > Phone > Wi-Fi Calls. Personally confirmed with a 5S.