911 Definitions

Basic 9-1-1:

Basic 9-1-1 means that when the three-digit number is dialed, a call taker/dispatcher in the local public safety answering point (PSAP), or 9-1-1 call center, answers the call.  The emergency and its location are communicated by voice (or TTY) between the caller and the call taker. 
 

Enhanced 9-1-1:

In areas serviced by enhanced 9-1-1, the local 9-1-1 center has equipment and database information that display the caller's phone number and address to the call taker.  The term "enhanced 9-1-1" is not synonymous with wireless 9-1-1.
           

Wireless 9-1-1:

911 calls from Cellular phones (wireless phones) are routed to one central point (currently Oneida County Dispatch). Presently wireless 911 calls don’t show a caller’s location. Therefore the calls cannot be routed to the closest appropriate PSAP. Only recently did the name and number appear on the call. Steps are in place nationally to pinpoint cellular 911 calls so they are received at the appropriate Public Safety Answering Point (PSAP).
           

The Development of 9-1-1

The three-digit telephone number "9-1-1" has been designated as the "Universal Emergency Number," for citizens throughout the United States to request emergency assistance. It is intended as a nationwide telephone number and gives the public fast and easy access to a Public Safety Answering Point (PSAP).

In the United States, the first catalyst for a nationwide emergency telephone number was in 1957, when the National Association of Fire Chiefs recommended use of a single number for reporting fires. In 1967, the President's Commission on Law Enforcement and Administration of Justice recommended that a "single number should be established" nationwide for reporting emergency situations. Other Federal Government Agencies and various governmental officials also supported and encouraged the recommendation. As a result of the immense interest in this issue, the President's Commission on Civil Disorders turned to the Federal Communications Commission (FCC) for a solution.

In November 1967, the FCC met with the American Telephone and Telegraph Company (AT&T) to find a means of establishing a universal emergency number that could be implemented quickly. In 1968, AT&T announced that it would establish the digits 9-1-1 (nine-one-one) as the emergency code throughout the United States.

The code 9-1-1 was chosen because it best fit the needs of all parties involved. First, and most important, it meets public requirements because it is brief, easily remembered, and can be dialed quickly. Second, because it is a unique number, never having been authorized as an office code, area code, or service code, it best meets the long range numbering plans and switching configurations of the telephone industry.

Congress backed AT&T's proposal and passed legislation allowing use of only the numbers 9-1-1 when creating a single emergency calling service, thereby making 9-1-1 a standard emergency number nationwide. A Bell System policy was established to absorb the cost of central office modifications and any additions necessary to accommodate the 9-1-1 code as part of the general rate base. The Enhanced 9-1-1, or E9-1-1, subscriber is responsible for paying network trunking costs according to tariffed rates, and for purchasing answering equipment from the vendor of their choice.

On February 16, 1968, Senator Rankin Fite completed the first 9-1-1 call made in the United States in Haleyville, Alabama. The serving telephone company was then Alabama Telephone Company. This Haleyville 9-1-1 system is still in operation today. On February 22, 1968, Nome, Alaska implemented 9-1-1 service.

At the end of the 20th century, nearly 93% of the population of the United States was covered by some type of 9-1-1 service. Ninety-five percent of that coverage was Enhanced 9-1-1. Approximately 96% of the geographic US is covered by some type of 9-1-1.