Panasonic KX-T336 System Reference Manual page 1070

Description of Assigning Items
AL Assigns toll restriction level for Area Code.
This setting does not restrict the extension user when AL ≤ TRLE
(toll restriction level of each extension).
When "411" or "911" is dialed, it will be checked against the restriction level in "AL"
field.
OL Assigns toll restriction level for Office Code.
This setting does not restrict the extension user when OL ≤ TRLE (toll restriction
level of each extension)
OC Office Code table number
blank : Call is restricted if TRLE<AL
0 to 64 : Office Code table number, for 6 Digits Toll Restriction. If the office code
dialed is found in the office code table, the call proceeds to 7/10 digit toll restriction.
If it is not then the call is restricted.
L Y: The leading 3 digits of the dialed number is checked against the restriction level
in "AL" field.
N: The leading 3 digits of the dialed number is checked against the restriction level
in "OL" field.
Conditions
When pressing the NEXT key, this screen changes as follows:
Area/Office
Area/Office
Code Table
Code Table
No.1
Entry 200
Pressing the PREV key changes the screen in reverse order.
Area/Office
Code Table
No.1 No.1
Entry 250 Entry 300
(50195)
Area/Office
Code Table
- - - - - -
Entry 950
9-I-2
No.8