Hodgie asked Verizon Wireless:
Q: I do not have any cell coverage in my area. Can I make phone calls with the iPhone 6 through a WiFi connection?
A: Great question! The iPhone 6 does support advanced calling which allows for video calls over wi-fi with any other phones that support advanced calling. Learn more about this including compatible phones at http://vz.to/1wR8aJ5. The iPhone 6 also supports calls to other iPhones using Facetime over wi-fi.