What is the identification of emergency phones on highways?

[VonAlice]

Highway emergency phones are marked with a black telephone inside a dark green square frame. Below is a partial introduction to emergency phones: 1. On highways, emergency phones are installed at regular intervals for requesting towing in case of vehicle breakdown or reporting accidents. It is a dedicated line that only connects to the highway traffic command center. 2. No dialing is required for use. There is a button on the phone panel - simply press it with your index finger, release after a moment, and you can communicate with the traffic command center. Before speaking, confirm your location's kilometer marker, time, general vehicle malfunction details, or accident scale and casualties to facilitate coordinated arrangements by relevant departments.