Panasonic KX-TDA15 Features Manual page 287

3.10.17 [4-3] DSS Console—Flexible Button—Type
3.12.9 [6-8] Hotel & Charge—Charge
→ Margin & Tax—Margin Rate for "Telephone" (%)
→ Margin & Tax—Tax Rate for "Telephone" (%)
→ Charge Options—Digits After Decimal Point
→ Charge Options—Currency
→ Charge Options—Currency Display Position
→ Charge Options—Action at Charge Limit
→ Charge Options—Meter Start on Answer Detection
PT Programming Manual
[010] Charge Margin
[011] Charge Tax
[012] Charge Rate per Unit
[130] Decimal Point Position for Currency
[131] Currency
Feature Guide References
1.8.6 Verification Code Entry
1.18.2 Flexible Buttons
3.1 Capacity of System Resources
User Manual References
1.10.1 Using the Telephones in a Hotel-type Environment (Hospitality Features)
3.2.2 Manager Programming
1.22 Administrative Information Features
Feature Guide 287