7. The Call From 333-3333 is Answered by Ext. 103
(Rapid Red
Flashing)
SDN buttons
(Off)
(Ext. 103)
(Red On)
(Ext. 102)
Ext. 101 (Boss)
SDN buttons
(Off)
(Ext. 103)
(Ext. 101)
Ext. 102 (Boss)
PDN buttons
(Off)
(Off)
(Red On)
Ext. 103 (Secretary)
PDN buttons
(Off)
(Off)
(Off)
PDN buttons
(Off)
(Green On)
(Rapid Green
Flashing)
SDN buttons
(Green On)
(Ext. 102)
(Rapid Red
Flashing)
(Ext. 101)
8. The Call From 333-3333 is Transferred by Ext. 103 to Extension 102
SDN buttons
(Off)
(Ext. 103)
(Red On)
(Ext. 102)
Ext. 101 (Boss) Ext. 102 (Boss) Ext. 103 (Secretary)
PDN buttons
(Off)
(Off)
(Off)
PDN buttons
(Off)
(Green On)
(Rapid Green
Flashing) (Rapid Red
Flashing)
SDN buttons
(Off)
(Ext. 103)
(Ext. 101)
PDN buttons
(Off)
(Off)
(Rapid Green
Flashing)
SDN buttons
(Moderate
Green Flashing)
(Ext. 102)
(Rapid Red
Flashing)
(Ext. 101)
Conditions
[General]
•A flexible button of a PT and a PS can be customized as a PDN or SDN button. A flexible button on a DSS
Console can be customized as an SDN button.
•An extension can have up to eight PDN buttons.
•If none of an extension’s PDN buttons are idle, the extension will not receive incoming calls, including Call
Waiting. Therefore, it is strongly recommended for PDN extensions to have at least three PDN buttons.
•Through COS programming, it is possible to select whether extensions can create SDN buttons on their
own extensions using PT programming.
•Up to eight different extensions can assign SDN buttons corresponding to the same PDN extension.
•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
•When multiple calls of the same status (e.g., on hold) are on a PDN extension, the status of the newest
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 last, when pressing the
SDN button.
•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 (® 9.1.1 ICD GROUP FEATURES).
•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 (® 10.1.3 Line Preference—Outgoing).
•Incoming Line Preference
216 Feature Manual Document Version 2008-11
13.1.7 PDN (Primary Directory Number)/SDN (Secondary Directory Number) Extension