Panasonic KX-NCP500 User Manual page 92

1.5.1 Primary Directory Number (PDN)/Secondary Directory Number (SDN) Extension
Light Pattern
Flashing red
rapidly
SDN Direct Dial
Using an SDN button, you can easily call the corresponding PDN extension. SDN buttons are in one of two
modes depending on system programming, and the operation procedure differs as follows:
Enhanced DSS Key Mode
PT/PS
Off-hook.
Standard SDN Key Mode
PT/PS
Off-hook.
•
When performing SDN Direct Dial to call the corresponding PDN extension, the SDN button
light shows the current status of the destination extension as follows:
Green on: You are using the line.
Red on: The line is being used. (The PDN extension, or another SDN extension when multiple
extensions have SDN buttons to a same PDN extension, is using the line.)
•
Even if a PDN extension has set Do Not Disturb (DND), you can call the extension as normal
by pressing the SDN button.
•
When an SDN button is in Standard SDN Key Mode, you can dial a telephone number while
hearing a dial tone, instead of pressing the SDN button again. Depending on system pro-
gramming, your call will be made using either your normal calling privileges (Class of Service)
or those of the corresponding PDN extension (SDN Walking COS).
92 User Manual
PDN Button Status
The PDN extension is receiving an incoming
call to an incoming call distribution (ICD)
group.
(SDN)
Press corresponding
SDN.
(SDN)
Press corresponding
SDN.
Talk.
(SDN)
D.Tone
Press the SDN again.
SDN Button Status
The corresponding PDN extension is re-
ceiving an incoming call.
Talk.