Originally Posted by Kermee

Or what's even neat, if you're lucky, if you have a phone that supports WiFi calling (i.e. iPhone 6) while traveling overseas, calls back the U.S. are free instead of $0.20 USD/min.

Originally Posted by dtsm

Part of iOS 8.x upgrade. Should work on all 5s and of course 6 iPhones.
When I return home, will check my online bill to confirm the wifi calls were FOC. At worse, $.20 per minute