CG-IEIK-001 Issue 4-August 1, 2005

"911" has been designated in the United States as the number to be used by the public to summons emergency aid or to report a crime, fire or accident. Its main purpose is to make it easier for people in time of emotional stress to contact the proper emergency agency. An important advantage of 911 emergency service is improved (reduced) response time.

The original 911 service, known as Basic 911 (B911), routes a call to one centralized answering location. The attendant at the answering location obtains the pertinent information that identifies the caller and the caller's need. The attendant then determines the appropriate agency and dials a 7-digit number to transfer the caller to that agency. The calling party's emergency information is verbally relayed to the responding agency and a unit is dispatched to the caller's location.

The city / county / parish in your area has purchased the Enhanced 911 service known as E911. Full-featured E911 is an electronic system that provides three major enhancements to Basic 911 service:

• Selective Routing (SR): Routes 911 emergency calls to the proper Public Safety Answering Point (PSAP) based on the emergency service number (ESN) assigned to the caller's address.
• Automatic Number Identification (ANI): Provides the calling party's seven (7) digit telephone number on the display at the PSAP.
• Automatic Location Identification (ALI): Provides the name and address associated with the calling party's telephone number on the display at the PSAP.

Note:
To receive the maximum benefit of E911, all or most of the serving area must be addressed. Without a house number on the PSAP display, dispatching is delayed and the responding agency has difficulty finding the correct address.