
General Features
216 Features Guide
1.8 Ringing Features
Do Not Disturb (DND)
Description
Allows the extension user to appear busy to an incoming CO or extension calls.
Conditions
• DND does not work for the following calls:
— Hold Recall
— Timed Reminder Alarm Tone
— Calls directed by Intercept Routing
• Do Not Disturb Override
An extension in DND mode can be called by other extension users who are allowed to
override DND in their Class of Service.
• An extension user may have only one type of Call Forwarding / Do Not Disturb feature in
effect at any time. If one of Call Forwarding / Do Not Disturb feature is assigned, another
does not function but the assignment itself is preserved for future use. The extension user
can choose either one by pressing the FWD / DND button while on-hook.
In this case, pressing the button changes the settings as follows:
The lighting patterns of the FWD / DND button are as follows:
• FWD / DND button
Regarding the PT without the FWD / DND button, it can be assigned to a flexible (CO,
DSS, PF) button by Station, User or System Programming.
• A PT user in DND mode can answer a call by pressing a flashing button which shows the
arrival of the call.
• Distinctive Dial Tone
When this feature is assigned to the extension, the extension user may hear a distinctive dial
tone (dial tone 2) after going off-hook depending on System Programming <Section 2.8
System Option, "15. Special dial tone after setting feature" in the Programming Guide>.
DND FWD Off
Off : Both functions are canceled.
Red on : DND mode
Red flash : FWD mode
This setting can be changed
by System Programming.