Industrial telephones (mostly SIP-type) are deployed at regular intervals in tunnels and interconnected with tunnel FM emergency broadcast systems. In the event of an emergency, on-site personnel can initiate emergency calls via the telephones, and the command center can directly issue dispatching instructions through the telephone terminals.

Mining industrial telephones feature waterproof, shockproof and explosion-proof performance. Connected to the underground dispatching system, they enable two-way communication between the surface and underground, and serve as an emergency rescue channel in case of accidents such as water inrush and collapse.

In hydropower stations, wind farms, substations and other sites, industrial telephones are used for equipment inspection, fault reporting and emergency dispatching, and are resistant to strong electromagnetic interference and harsh outdoor weather.

Explosion-proof industrial telephones are deployed in production workshops, tank farms and loading/unloading areas to ensure safe communication in flammable and explosive environments, and support interconnection with the park's emergency command platform.