• DND Override
An extension in DND mode can be called by other extension users who are allowed to override DND in
their COS.
• Paging DND
It is programmable whether the PBX pages extensions in DND mode through system programming. (®
13.1.1 Paging)
• Intercept Routing—Busy/DND
If a call arrives at an extension in DND mode, the call can be redirected to a preprogrammed destination
by the Intercept Routing—Busy/DND feature.
• Idle Extension Hunting
While searching for an idle extension within an idle extension hunting group, any extension that has DND
set will be skipped. The call will go to the next extension in the group, not the Intercept Routing—Busy/
DND destination.
• If (1) a CO line call via the ELCOT/LCOT or T1 (LCOT/GCOT) card arrives at an extension in DND mode
and (2) the Intercept Routing—Busy/DND destination is not available and (3) there is no available extension
in the idle extension hunting group, then the original extension in DND mode will ring.
• Calls from a doorphone arrive at the extension even when the extension is in DND mode.
PC Programming Manual References
4.5 [2-3] Timers & Counters—Dial / IRNA / Recall / Tone—
Tone Length—Busy Tone / DND Tone
4.11 [2-6-3] Numbering Plan—B/NA DND Call Feature
→ BSS / OHCA / Whisper OHCA / DND Override
→ BSS / OHCA / Whisper OHCA / DND Override-2
4.12 [2-7-1] Class of Service—COS Settings—Assistant— DND Override
6.1 [4-1-1] Wired Extension—Extension Settings—FWD / DND
6.3 [4-1-2] Wired Extension—FWD/DND
6.10 [4-2-1] Portable Station—Extension Settings— FWD / DND Reference
6.12 [4-2-2] Portable Station—FWD/DND
PT Programming Manual References
[507] DND Override
Feature Manual References
3.1.23 COS (Class of Service)
Operating Manual References
1.3.20 DND (Do Not Disturb)
4.1.11 Door Open
Description
Using an extension telephone, an extension user can unlock a door for a visitor.
The door can be unlocked by extension users who are allowed to unlock the door in Class of Service (COS)
programming. While
engaged on a doorphone call, any extension user can unlock the door to let the visitor in.
(® 4.1.12 Doorphone Call)
Document Version 2013-05 Feature Manual 97
4.1.11 Door Open
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