What does the half moon icon represent?
It's the Do Not Disturb feature. You can change its settings in Settings.app
Much thanks 
It's actually a nice addition to the iOS, particularly if you want some peace and quiet at night if your phone is constantly going off at night. At least it's helped me get a better night's sleep a little while back![]()
I can't do that. My iPhone is my only phone. So I have DND set to receive only family. I got tired of wrong numbers and messages from Verizon at 3:00 am. If I had a regular home phone, I'd just turn it off. Family emergencies do happen. My daughter called early one morning to tell me their house just burned down. So DND works great for me.I just turn off the phone or put it on silentSent from my WiFi Only Black 64GB iPad with Retina Display using Tapatalk