Did you know: Google removed silent mode from Android 5.0 Lollipop (and everyone is outraged)35
However, as more and more users get it on devices, some surprising shortcoming show up and the most notable one (one of the highest rating on the Android Issue tracker) is the lack of ‘silent mode’ in Android 5.0 Lollipop.
Android 5.0 Lollipop does bring a few new settings for notifications: you have a do not disturb settings (where no notifications pass through), you have a priority mode (where you can set notifications from certain apps and callers to filter through), and you have a volume slider that controls all notifications.
Users are complaining that if you’re in a meeting or in the library and want to discreetly stay in touch with the world you cannot do that easily by just pressing the volume down button to silence the phone. Hopefully, Google takes note and brings that option back in a future update.