| 379 / | HD | TELEPHONIC COMMUNICATIONS |
| 111 | DF | WITH USAGE MEASUREMENT (E.G., CALL OR TRAFFIC REGISTER) {3} |
| 114 | DF | .~ Call charge metering or monitoring {5} |
| 130 | DF | .~.~ At subscriber station {1} |
| 131 | DF | .~.~.~ Time controlled {1} |
| 132 | ![]() | .~.~.~.~ Paystation (e.g., escrow control) |