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 | .~.~.~ Time controlled {1} | |
132 | DF | .~.~.~.~> Paystation (e.g., escrow control) |