FaceTime international calls
I have yet to find, or get a clear cut answer to this question. I have asked this question to cell phone carriers' customer service departments and searched the web. If I make a FaceTime (audio or video) VOIP call (not via WIFI) to a person who lives in, and has service in another country (i.e. Italy) does it count toward data only usage or does it count as an international call with associated carrier charges. And this question is for the four major U.S. carriers so if they're different please state how.
Thanks
Milton
iPhone 6s Plus, iOS 9.2