Panasonic KX-TD500 Features Manual page 316

General Features
[DN General]
• DN Button Assignment (flexible CO)
A DN button (PDN, SDN) can be assigned to a flexible CO button on a PT by Station, User
or System Programming.
PDN: Up to three PDN buttons can be assigned per PT and at least one PDN button
should always be assigned to the CO 01 button.
SDN: Up to eight SDN buttons per PDN button can be assigned to eight different PTs
respectively. Up to three different SDN buttons can be assigned per PT.
• Priority of CO Call Indication (DN type PT)
Both CO and DN buttons can be assigned on one DN type PT at a time. In this case, an
incoming CO call appears on a CO button if it has the associated CO line. If not, the
incoming CO call appears on a PDN button.
• Delayed Ringing
Immediate, delayed or no ringing can be assigned to the DN (PDN, SDN) buttons.
PDN: Delayed ringing assignment of the first PDN button (assigned to the CO 01 button)
applies to all other PDN buttons on the PT.
SDN: If more than one SDN button is assigned on the PT, each SDN button can have its
unique delayed ringing assignment respectively.
• Ringing Transfer
An extension user can transfer a call on an SDN button to its associated PDN button simply
by pressing the SDN button.
• PDN Call
An SDN button can be used to call the extension which has the PDN button associated with
the SDN button with a simple operation.
[PDN]
• If at least one PDN button is idle, the calls appear on the PDN button either when the
extension is on-hook or off-hook (including when engaged in another call).
[SDN]
• DN type PT only
An SDN button should be assigned to a DN type PT. An SDN button assigned to an ICM
type PT does not function.
• Associated PDN button
An SDN button should have its associated PDN button. Otherwise, it does not function.
• SDN COS (Class of Service)
This setting is applied when the extension user makes an outside call using an SDN button
on his own PT.
a)
Own Extension (Default)
His own toll restriction level (determined by COS programming) is applied to the call.
b)
PDN
Toll restriction level of the PDN owner is applied to the call.
• SDN buttons can be used to answer the following types of call which come in on its
associated PDN: DIL 1:1; DISA; DID; DID (ISDN); MDN; UCD; Call hunting: IRNA;
Extension; TIE
316 Features Guide