Carrier Digital Telephone is a multifunctional communication terminal that operates over power line networking, integrating two-way calling, multi-party intercom, broadcasting, and alarm functions in a single device. By utilizing existing power lines as the transmission medium, the system enables reliable communication without the need for additional dedicated communication cabling.

The Carrier Digital Telephone features strong anti-interference capability, clear voice quality, high security, flexible scalability, simplified wiring, and plug-and-play installation. These advantages make it particularly suitable for harsh environments and locations with severe electromagnetic interference. Typical applications include ports and terminals, ocean-going vessels, power plants, chemical plants, steel mills, offshore oil drilling platforms, lifting equipment, railway tunnels, culverts, and coal mine rail transportation systems.