Ever since I updated to iOS 7.0 my do not disturb on my iPhone 5 has not worked as advertised. When do not disturb is enabled, calls, text messages and and voicemails would come through to my phone as if the feature was not even enabled in the first place. Someone on the Apple forums found a solution If you subscribe to call display and name display...for some reason name display stops do not disturb from working. If you call your cellular supplier and ask them to disable name display you will soon find that do not disturb works perfectly as advertised. Give it a try and report back your findings. Thanks and good luck.