If you’ve been waiting for AT&T’s WiFi calling service to start working outside the US, you may want to install iOS 9.3 on your iPhone right now. It won’t only bring Night Shift to your device, but also the ability to call from other countries without incurring additional charges. So long as the feature has been toggled on in Settings, and you’re calling another phone with WiFi calling enabled, you can make or receive calls abroad even if you barely have coverage. If you dial an international number, though, you’ll have to pay your plan’s usual rates.
It’s definitely a welcome upgrade, but note that the feature only works with the iPhone 6, 6 Plus, 6s, 6s Plus and, when it’s released, SE running Apple’s latest mobile platform. Besides updating its WiFi calling service, AT&T now allows iPads and Macs connected to your iPhones via Numbersync to make calls on a cellular connection.