Panasonic KX-T336 System Reference Manual page 222

1.06 3/6 Digit Toll Restriction
Flow Chart
Local and long distance calls can be restricted by
area codes only, or by office codes only, or by both
area codes and office codes.
The procedures are shown below:
Type-A, B or C
Area Code
Is the item "L" in Area/Office Code
Table assigned to "Y"?
≥
TRLE AL
Compares "AL" in Area/Office Code Table with
TRLE in Class of Service.
Checks "OC" in Area/Office Code Table.
Is office code registered in Office Code Table?
( for U.S.A. and Canada only)
Start
<1>Determines if the leading three digits of the telephone
number is an Area Code or Office Code, depending
on "System-Operation", Home Dialing Plan or "Group-
Trunk Group", Dialing Plan.
Type-D
Yes
TRLE<AL
except blank
Yes
End (Advances to 7/10 Digit Toll Restriction)
3-C-15
(60395)
No
TRLE<OL
blank
No
Prohibits
(Sends reorder
tone)
Type-A, B or C
Office Code
Compares "OL" in Area/
Office Code Table with
TRLE in Class of Service.
≥
TRLE OL