Pull down the Control Center by swiping down from the top of the screen. 2. If you don't see the Do Not Disturb icon, swipe down a second time to see more icons. 3. Find "Do Not Disturb" and tap it.

This icon means that your iPhone's Do Not Disturb feature is enabled. When Do Not Disturb is turned on, all of your phone calls will be sent straight to voicemail. While you'll still receive texts ...