How can I make phone calls on the internet IPhone 6 I have a remote location were I have only satellite service, no cell service.

When I first purchased my iPhone 6 to my surprise I received messages (voice) left on phone at this location. I couldn't call people back but could text them over the internet. 

Now after returning to the remote location I can not get any more messages left on my phone from voicemail. I am still getting text messages, which I also did with my iPhone 4S. 

Did an update wipe out this ability or have I turned something off by mistake? I have all of my data turned on to WiFi.
Sounds like you want to enable Wifi Calling on your device. Turn on Wi-Fi calling in Settings &gt; Phone &gt; Wi-Fi Calling. For more, check out the Apple page on Wifi Calling.