Do Not Disturb (telecommunications)
FUNCTION ON MOST PBX OR PABX SYSTEMS
DnD – Do Not Disturb (Telecommunication); DnD - Do Not Disturb (Telecommunication)
The Do Not Disturb or (DND) function on most PBX or PABX systems prevents calls from ringing on an extension for which DND is activated. Some Do Not Disturb (DND) attributes include directing the call to a preassigned extension (like a secretary or assistant), busy signal, DND signal, or recorded message generated by the telephone switch.