Hypothetically speaking, if someone is living in New York and they call 911, how does the call not go through a hospital in Los Angeles or other city from another state? How does the call automatically transfer to a local hospital in the area one lives in?
In: Technology
imagine you are in one of a large number of adjacent rooms (phone network) . each room also has a manager (call router) , that knows the managers of the other rooms. usually when you want to make a call the manager would transfer you to the other rooms until you me the person you want to speak with. but in an emergency you need that help locally. so the manager also knows where the first-aid kits are located in his room an can send you there directly
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