Seems we made things right.
Thanks for the feedback.
If you have a compatible phone that you’ve bought from Three, and you're running the latest system software, you don't need to do anything - Wi-Fi Calling will just work when you need it.
You’ll be charged in the same way as normal, so your usage will come out of your monthly allowance, or you'll be charged at the same rate as you usually would be for using our network.
Here's a current list of all our Android phones ready for Wi-Fi Calling. Click the links below to find out how to update your phone with the latest system software.