Panasonic KX-T336 System Reference Manual page 220

1.05 Operator/International Call
Restriction
(
Flow chart
The flow chart below shows the toll restriction
procedure for Operator (telephone company) and
International calls.
<1> Compares Operator Call Restriction Level (ORLV)
with TRLE in Class of Service.
Is the call an international call (leading digit is 01 or
011)?
<2> Compares International Call Restriction Level
(IRLV) with TRLE in Class of Service.
for U.S.A. and Canada only)
Start
TRLE>ORLV
Yes
TRLE>IRLV
International call is performed.
3-C-13
(60395)
TRLE<ORLV
Prohibits operator calls and
international calls.
(Sends reorder tone)
No
Operator call is performed.
TRLE<IRLV
Prohibits international calls.
(Sends reorder tone)