got a text today that said AT&T international wifi calling has been enacted without it counting against your plan. First time. In the past international wifi calling has counted against your minutes.
AT&T Free Msg: With the latest software update, the NumberSync service on your other devices will allow calling over cellular networks in addition to Wi-Fi networks. Data use charges apply. Visit att.com/numbersync for more details
AT&T Free Msg: With the latest software update for your phone you can use Wi-Fi Calling when traveling outside the U.S. This means you can call back to the U.S. or receive incoming calls, with no airtime charges. When you call international numbers, your rates will be the same as those in your smartphone plan or your international package. For details visit att.com/wificalling
Seeing the Wi-Fi Calling change - previously I could only get it to work via VPN back to the U.S. but now it automatically picks Wi-Fi Calling over roaming carriers. But I'm only getting 3G speeds roaming (not on Wi-Fi) where I know local iPhones are showing 4G.
If you're calling a U.S. number, I would assume that it would be treated as a call back to the U.S. regardless of where the phone you're calling is currently located on the globe. If I call my friend's U.S. phone number when they happen to be in another country, I don't get charged for making an international phone call. It's treated as domestic based on the number I'm calling.
Yes. This is like T-Mobile UMA (unlicensed mobile access) wifi calling I had back way back in 2007 on my blackberry curve.
I used UMA calling on the speed trains between Paris and Amsterdam (trains have wifi on board even back in 2008/2009) and called for "free".
I just realized I could turn iPhone 6s Plus on airplane and be on wifi and att wifi icon lights up on airplane mode. That's the safest way to prevent any unsafe accidentally roaming charges. Put phone on airplane mode with wifi