From a very high level -- and I'm going to make it a little simpler than it actually is -- the reason that the telephone system works is that it has a signaling system. A signaling system is like a series of traffic lights. Imagine that we go to New York City and we're sitting in Midtown at three o'clock in the afternoon in a cab. Now, let's say I have a little button, an app on my . I hit it and it turns off every traffic light in Midtown. What happens? We all grind to a halt. Nothing goes anywhere. If you remove a signaling system, all heck breaks loose, chaos ensues and nothing can go anywhere on the network. Well, we're building a signaling system for the Internet.
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