•
If none of an extension's PDN buttons are idle, DSS buttons of other extensions registered to the PDN
extension will turn on red.
•
Ring Tone Pattern
Through system programming, each extension can set ring tone patterns for PDN buttons. Ring tone
patterns can be assigned separately for each SDN button.
•
Outgoing Line Preference
When "PDN" is selected as the outgoing line preference, outgoing calls will originate on the first available
PDN button (® 1.5.5.2 Line Preference—Outgoing).
•
Incoming Line Preference
Through system programming, it is possible for only incoming calls arriving at PDN buttons to be answered
simply by going off-hook, by selecting "PDN" as the incoming line preference (® 1.4.1.2 Line
Preference—Incoming). This prohibits calls that arrive on non-PDN buttons (e.g., an SDN button) to be
answered when going off-hook.
•
Walking Extension
For PDN extensions, the Walking Extension feature can only be used when all PDN buttons are idle
(® 1.28.3 Walking Extension Features).
•
Wireless XDP Parallel Mode
If a PS has PDN or SDN buttons, Wireless XDP Parallel mode cannot be assigned to that PS (®
1.25.5 Wireless XDP Parallel Mode).
•
OHCA/Whisper OHCA
A PDN extension cannot receive OHCA or Whisper OHCA, unless the call is made using a corresponding
SDN button (® 1.8.5.3 Off-hook Call Announcement (OHCA), ® 1.8.5.4 Whisper OHCA).
•
Alternate Calling—Ring/Voice
It is not possible to temporarily change the called party's preset call receiving method (ring tone or voice)
when calling a PDN extension, unless the call is made using a corresponding SDN button (®
1.5.3 Intercom Call).
•
Through system programming, it is possible to force an extension to become idle (the SP-PHONE button
light will turn off) when a speakerphone call using a PDN/SDN button is put on hold using CTI.
[Delayed Ringing]
•
The same delayed ringing setting is applied to all PDN buttons on an extension. Delayed ringing can be
assigned separately for each SDN button.
•
Through system programming, it is possible to select whether caller information (such as Caller ID) is
shown immediately on a PS when a call is received while delayed ringing is set.
•
Caller information (such as Caller ID) is not shown immediately on a PT when a call is received while
delayed ringing is set.
•
SDN buttons can be set to not ring (only flash) for incoming calls. However, this setting is not available for
PDN buttons.
•
The forward no answer timer starts when a PDN extension starts ringing.
PC Programming Manual References
4.12 [2-7-1] Class of Service—COS Settings—PDN/SDN
4.17 [2-8-3] Ring Tone Patterns—Call from Others—
4.18 [2-9] System Options—Option 4—
4.18 [2-9] System Options—Option 6 (CTI)—
6.1 [4-1-1] Wired Extension—Extension Settings—Option 9—
6.5 [4-1-4] Wired Extension—Flexible Button
→
Type
→
Parameter Selection (for SDN)
→
Extension Number (for SDN)
→
Optional Parameter (Ringing Tone Type Number) (for Loop CO, Single CO, Group CO, ICD Group,
SDN)
1.7.1 Primary Directory Number (PDN)/Secondary Directory Number (SDN) Extension
System Wireless—SDN Delayed Ringing with LCD
CTI Hold—Forced Idle when Hold by PDN/SDN Key
Extension—Ring Tone Pattern Plan 1–8
PDN Delayed Ringing
Feature Guide
121