That's a dedicated telephone that can only lead to the traffic control center in expressway. You don't need to dial when you use it. There is a button on the telephone panel. Just click the button with your index finger and let it go for a while to talk to the traffic command center. Before making a phone call, you should confirm the kilometers, time, vehicle failure, or the scale of the accident, casualties, etc. Your position, so that the relevant departments can make overall arrangements.
Other emergency calls:
With the improvement of people's living standards, there are more and more opportunities to travel. However, during the journey, you will also encounter various accidents, such as your partner falling off a cliff, being attacked by poisonous snakes and beasts, shopping being slaughtered, stolen and robbed.
In the event of an accident, after picking up the plane, it will automatically call the customer service center of tourist attractions to realize emergency help, so that the staff of the service center can quickly arrange personnel to deal with related accidents.