When a call comes into an E911 center, the caller cannot (or will not) always say exactly from where they are calling. Obviously, this is important information to the dispatcher. The solution is to identify the location by accessing a database based upon the calling telephone number (using Caller ID). The database record needs to provide sufficient information to allow emergency vehicles to be dispatched to the correct location.
The standard method of identifying locations in an E911 database is by street address. At a military base, however, buildings are numbered, and traditionally there have not been street addresses for buildings (some streets either have no names or few street signs). To accommodate E911 systems, military bases are now naming streets and assigning a street address to each building.
Our E911 interface is a batch interface. No attempt is made to track individual changes during the day. Instead, a process is run daily (or as required) to generate a set of updates to be passed to the E911 system. The updates are written to an ASCII file called the interchange file. Our interface only generates the interchange file. It is up to the E911 vendor or site personnel to do something with the interchange file once it has been created.
E911 information is stored in the Building Master File (shown below) of the Plant Record / Cable Record module.