Since publishing my review, I've tweaked my Action button shortcut to work this way: If the device orientation is face down or portrait upside down, toggle Silent mode. (And when turning Silent Not even ring vibrate and silent really? How to Make Silent Mode Vibrate on iPhone Guide for the Apple iPhone 4 (iOS4) Turn vibration on or off Vodafone Australia No smartphone vibrate sign. Silent mode icon. Vector. 42065673 Vector Art at Vecteezy Vibrate Silent Mode App on Amazon Appstore