You are at a funeral and have to silence your iPhone. How can you do that without turning off the phone? Well first you have to flip it to Mute which partly mutes the phone - some applications simply don't listen to the mute switch also alarms will sound. So what you'll also have to do is to open an application, as othewise you'd be adjusting the ringer volume which is already muted, and finally then lower the volume using the side buttons. Why doesn't the Mute switch actually Mute the phone?