Do Not Disturb is the best way to block out all interruptions on your iPhone without having to power down. All notifications and alerts are silenced, but the same can't be said for phone calls. By default, repeat calls will bypass Do Not Disturb, which can be quite frustrating when you're in a movie, classroom, or board meeting. It's good for emergencies, but not for people who can't take the hint. If anyone in your contacts calls you a second time within three minutes of their first call, their call ignores Do Not Disturb and rings on your iPhone. Although you can allow emergency contacts to... more
