Do Not Disturb (DND) stops a phone or extension from ringing for incoming calls. Instead of interrupting, calls go to voicemail, another extension, or a set of routing rules you define.
On a business phone system, DND lets staff focus or go off-shift without missing how calls are handled, since the system follows your fallback rules.
With Frontdesk, turning on Do Not Disturb does not mean a missed call: the AI answers, helps the caller, and texts you a summary instead of sending them to voicemail.