PSA for AT&T iPhone 4s Users
The iOS 9.2 update brings a feature called AT&T NumberSync. Essentially, it allows you to answer phone calls on any device even when your phone isn't nearby. It's a nifty feature for AT&T users but it's not one iPhone 4s users should get excited about.
AT&T NumberSync isn't available for the iPhone 4s. If you want to use NumberSync, you must have an iPhone 6, 6 Plus, iPhone 6s, or iPhone 6s Plus running iOS 9.2 or above.
Just a heads up before you rush to go install iOS 9.2 thinking it'll bring NumberSync to your AT&T iPhone 4s. It won't.
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