How E911 is Supposed to Work & What Goes Wrong

摘要

Why is it so difficult for enterprises to communicate specific caller information to 911 operators? To answer this question, it's important to first understand how a 911 call works when it comes from an enterprise: 1. An end user at your enterprise dials 911. The call is sent to a "selective router" in your area, which serves as a switching point in North America's separately built emergency phone network. Unlike other phone networks, this special 911 network routes its calls based on the calling number instead of the called number.