Do Not Disturb is a feature which prevents your phone from ringing and lets you send all incoming calls directly to your voicemail. All calls you receive while DND is enabled are logged in your Recent Calls list.
1. Press the home button.
2. Select DND.
3. Press DND once to activate the Do Not Disturb feature. The DND icon will show a red indicator when enabled.
NOTE: Press DND again to disable the Do Not Disturb.
