Everyone understands the need for 911, but Enhanced or E911 is not as commonly known. E911 is actually a feature of the traditional 911 emergency calling system, and in North America is a telephone network that automatically associates a person’s physical address to the caller’s phone number.
Basically, it is like a reverse phone directory that a phone company can provide for numbers that are not already a landline, in the form of a computerized file. The association between the caller’s VoIP phone and their physical address is made using a computer software application.
The primary benefit is that emergency responders can find your location without you having to provide an address.