Panasonic KX-T336 System Reference Manual page 1240

Example:
<Software old version>
Account code (111)
Toll Restriction is executed according to the TRLE of each extension.
<Software version 15.XX or higher>
Account code (111 = TRLA 01)
Toll Restriction is executed according to the TRLA of account code entered
regardless of TRLE of each extension.
10-C-92-1
(70695)