Panasonic KX-NS500 Features Manual page 273

PT Programming Manual References
[010] Charge Margin
[011] Charge Tax
[012] Charge Rate per Unit
[130] Decimal Point Position for Currency
[131] Currency
Feature Guide References
2.7.6 Verification Code Entry
2.21.2 Flexible Buttons
6.1 Capacity of System Resources
User Manual References
1.12.1 Using the Telephones in a Hotel-type Environment (Hospitality Features)
4.1.2 Manager Programming
2.22.3 Call Charge Services
Feature Guide 273