how do how reset. do not desterub

Hey wilbiz,

Thanks for the question. The following article provides information on Do Not Disturb:

iOS: Using Do Not Disturb

http://support.apple.com/kb/HT5463

You can enable/disable Do Not Disturb from the Settings application or the Control Center. If you are having issues, you can restart/reset your iPhone:

iPhone, iPad, iPod touch: Turning off and on (restarting) and resetting

http://support.apple.com/kb/HT1430

Restarting your iOS device

1. Press and hold the Sleep/Wake button for a few seconds until the red "slide to power off" slider appears, and then slide the slider.

2. After the device has turned off, press and hold the Sleep/Wake button until the Apple logo appears.

Resetting your device

If your device stops responding, you can reset it by pressing and holding both the Sleep/Wake and Home buttons for at least ten seconds, until the Apple logo appears.

Thanks,

Matt M.