Panasonic KX-T336 System Reference Manual page 921

3.00 DN Assignment
Summary
Assigns a DN (directory number) to each exten-
sion port.
Four DN Assignment screens are provided.
(Password level : One)
Assigning Items
DN
Description of Assigning Item
DN Assigns a default directory number to every port of installed extension cards.
Conditions
If no Extension card (PLC, SLC, HLC, OPX) is assigned, DN assignment screen will not be
displayed.
Default
100 to 387 in Three or four numeric digits : directory number
physical number
order
9-C-6
Selection of Value
Reference
3-B-2.00