System Parameters

• Enable E911 System:Default = Off (Not Selected)
  This is the parameter that indicates whether Enhanced 911 service will be used on the system. By default this is off. If your state requires E911 service, check this. When selected, the functionality provided by the other administration items in the E911 System form are used when "911" calls are dialed.

• Alarm Station: Default = Blank
  When the E911 Adjunct detects an error condition (such as the disconnection of the trunk cable between the adjunct and the PSTN) the alarm station (which is a connection from the adjunct to a Tip/Ring port) is notified. A station in the system should be configured for a User DSS button (See Button Programming section for more details). When the alarm station is notified, the DSS button is lit. This indicates that there is a problem with the lines or the adjunct device. When this situation occurs, the lines for the adjunct are NOT used and all "911" calls are routed over local lines. That means that they go out a non-adjunct line without the extra information. Once the lines are back in service, the alarm extension is notified and the User LED is extinguished and normal adjunct E911 operation resumes.

• Adjuncts:
  If your State requires detailed information about a caller (i.e. office number), an adjunct can be used to provide that information. The adjunct box sits between the IP Office and Central Office and is connected via Loop Start lines to the IP Office and Centralized Automatic Message Accounting (CAMA) trunks to the Central Office. When this is administered, "911 calls" that are routed over these lines send out additional information about the caller (Extension ID). This information is used by the adjunct to provide detailed caller location. Right-click the mouse to add or remove entries. Use the standard Window Key to select a continuous group (Shift Key) or Individual Channels (Control Key). There can be five Analog Loop Start trunks (either on the Control Unit or those on the ATM 16 module) administered to an E911 adjunct.