379 / | HD | TELEPHONIC COMMUNICATIONS |
FOR 112 | DF | TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE) (379/90) {8} |
FOR 128 | .~ Remote indication over telephone line (e.g., telemetry) (379/106) {1} | |
FOR 129 | DF | .~.~> Meter reading (379/107) |