Apple iPhone 11 Pro Max

Apple iPhone 11 Pro Max

I can't use Wi-Fi calling on my Apple iPhone 11 Pro Max iOS 15.0

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 11 Pro Max

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