Note: an alarm set through the iPhone Clock app will ignore silent mode and go off at the appointed time. Alarms set with other apps may not. [2] X Research source

The switch’s “up” position means the phone’s sounds are “on” If you enter into silent mode when your iPhone’s display is on, you will see a “Ringer Silent” notification on your screen.

This setting will not prevent your screen from lighting up when notifications or calls come in.

Note: Alarms set in the iPhone Clock app will still sound as normal when your phone is in “do not disturb” mode. Many people place their phones in this mode overnight so that they are not woken up by unwanted vibrations, rings, or lights from their phones. [5] X Research source

You can also access “do not disturb” by going to Settings > Do Not Disturb. Change to toggle next to “Manual” from white to green. [6] X Research source Control panel has another, similar icon which displays a crescent moon inside of a sun. This button enables a function called NightShift.

For instance, you may wish to input your normal working hours (9AM to 5PM) to avoid distractions while at work.

Click “Everyone,” “No One,” “Favorites,” or “All Contacts. ”[8] X Research source

Choose Settings > Do not Disturb. Find the toggle next to “Repeated Calls”. Leave it green to keep this mode enabled or switch it to white to turn this option off. [9] X Research source