Apple iPhone 6s Plus

Apple iPhone 6s Plus

iOS 15.2
iOS 15.2 iOS 14.0 iOS 13.1 iOS 12.0 iOS 11.0 iOS 10.0 iOS 9.0

I can't use Wi-Fi calling on my Apple iPhone 6s Plus iOS 15.2

Cause 3 of 4: The operator settings haven't been updated to the latest version

If you can't use Wi-Fi calling, you may need to update the operator settings to the latest version.

Solution: Check if there's an update for the operator settings in "About" in your phone's settings.

Apple iPhone 6s Plus

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