2 types of calls (depends on the place the call came from):
Urban Districts
Dangerous Areas
Dangerous areas can be set uped in the config file, and can be added as many locations as you wish
Dangerous areas works thru the radius also set uped in the config file
Ambulance/Police/Mechanic workers can take the order, that will immidiently create a new waypoint for them, and will create a new UI element that will show them distance
Calls contains:
Caller name
Calling status (reason)
Distance between the caller and the worker
After the order is finished, workers can delete it