Panasonic KX-NS700 Feature Manual page 255

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Through COS programming, it is possible to select whether extensions can create SDN buttons on their
own extensions using PT programming.
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Up to eight different extensions can assign SDN buttons corresponding to the same PDN extension.
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When a PDN extension has an idle CO line button or ICD Group button, calls will arrive on the following
buttons according to the following priority:
–
Incoming intercom calls to an ICD group: ICD Group button → PDN button
–
Incoming CO line calls: S-CO button → G-CO button → L-CO button → PDN button
–
Incoming CO line calls to an ICD group: ICD Group button → S-CO button → G-CO button → L-CO
button → PDN button
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When multiple calls of the same status (e.g., on hold) are on a PDN extension, the status of the oldest
call will be displayed on the corresponding SDN extensions. For example, if a PDN extension has two
calls ringing, an SDN extension will answer the call that arrived at the PDN extension first, when pressing
the SDN button.
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When a PDN extension is a member of an ICD group in Ring Distribution method, and an incoming call
arrives at the ICD group, the incoming call status will not appear on the LEDs of the corresponding SDN
extensions. (→ 10.1.1 ICD GROUP FEATURES)
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If none of an extension's PDN buttons are idle, DSS buttons of other extensions registered to the PDN
extension will turn on red.
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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.
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Outgoing Line Preference
When "PDN" is selected as the outgoing line preference, outgoing calls will originate on the first available
PDN button (→ 12.1.3 Line Preference—Outgoing).
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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 (→ 12.1.2 Line
Preference—Incoming). This prohibits calls that arrive on non-PDN buttons (e.g., an SDN button) to be
answered when going off-hook.
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Walking Extension
For PDN extensions, the Walking Extension feature can only be used when all PDN buttons are idle (→
22.1.2 Walking Extension).
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Wireless XDP Parallel Mode
If a PS has PDN or SDN buttons, Wireless XDP Parallel mode cannot be assigned to that PS (→
22.1.6 Wireless XDP Parallel Mode).
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One numbered extension
If an extension has PDN or SDN buttons, Sub extension of One numbered extension cannot be assigned
to that extension (→ 14.1.5 One-numbered Extension).
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OHCA/Whisper OHCA
A PDN extension cannot receive OHCA or Whisper OHCA, unless the call is made using a corresponding
SDN button (→ 14.1.3 OHCA (Off-hook Call Announcement), → 22.1.5 Whisper OHCA).
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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
(→ 10.1.14 Intercom Call).
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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.
Document Version 2017-06
15.1.5 PDN (Primary Directory Number)/SDN (Secondary Directory Number) Extension
Feature Manual 255