Originally Posted by
HockeyCoachBen
Continuity (calls on other devices) calls on iOS are exactly the same as if you had made it from your iPhone with T-Mobile as per a senior engineering lead that I know pretty well. So if you’re on WiFi it’s billed as a WiFi call. If you’re on cellular it is billed as a cellular call.
So no carrying around an cellular equipped iPad overseas to bypass the $.20/min charge eh?