Use this feature to be able to press a programmed button to prevent incoming calls for the extension from ringing (lights may still flash). You can still use the extension to make calls and to answer calls using line appearance buttons.
•Use Do Not Disturb when you do not want the auto attendant or the voice messaging system to transfer calls to you.
•If you are assigned to a hunt group and you leave your desk, use Do Not Disturb so that calls to the hunt group will skip your extension and ring immediately at the next available extension in the group.
•Unanswered calls that are transferred from an extension with Do Not Disturb active, ring at that extension if they transfer return.
•If you have VMS Cover turned on, enabling Do Not Disturb will send all your calls immediately to your voicemail mailbox.
•If you have Call Coverage turned on, enabling Do Not Disturb will send all your calls immediately to the covering extension.
•The status letter N is shown on your phone's idle display when you have Do Not Disturb enabled. If you go off-hook, you will hear interrupted dial tone.
To manually switch do not disturb on/off: (1403/1408/1416)
1.Dial FEATURE 01. On 1043 phones dial *01 and press DROP. An N is shown on your phone's idle display when you have do not disturb enabled.
To create a do not disturb button: (1408/1416)
When Do Not Disturb feature is on, the button's light is lit.
1.Press the Admin soft key on the display.
•If you access phone administration during a call, only the 
SPEAKER, 
MUTE and 
HEADSET buttons still affect the connected call.
2.Use the 
up or down 
arrow buttons to scroll to Telephone Programming. Press Select.
3.Press the programmable button you want to change. Alternatively:
•Use the up or down arrows to scroll to Button Programming. Press Select.
•At the Button: prompt press the button to edit or enter from the button number.
4.The current setting of that button is displayed.
5.Press Program and either dial #01 or use the up or down arrow buttons to scroll the display to Do Not Disturb and press Select.
6.The current setting of the button will now be set to Do Not Disturb.
•Exit phone administration by pressing the 
PHONE button. Alternatively use the Back button to move to another menu.