emergency telephone number emergency telephone number an emergency telephone number is a number that allows a caller to contact local emergency services for assistance. the emergency number differs from country to country; it is typically a three-digit number so that it can be easily remembered and dialed quickly. some countries have a different emergency number for each of the different emergency services; these often differ only by the last digit. 9-1-1 is an emergency telephone number used in many countries in the americasa fire truck in ennigerloh, germany, with the european emergency number 1-1-2 painted on its side implementation of the two itu approved emergency telephone numbers in the world: 1-1-2 9-1-1 1-1-2 and 9-1-1 other number or no redirection in many countries, dialing either 1-1-2 (used in europe and parts of asia) or 9-1-1 (used in the americas) will connect callers to emergency services. for individual countries, see the list of emergency telephone numbers. configuration and operation the emergency telephone number is a special case in the country's telephone number plan. in the past, calls to the emergency telephone number were often routed over special dedicated circuits. though with the advent of electronic exchanges these calls are now often mixed with ordinary telephone traffic, they still may be able to access circuits that other traffic cannot. often the system is set up so that once a call is made to an emergency telephone number, it must be answered. should the caller abandon the call, the line may still be held until the emergency service answers and releases the call. an emergency telephone number call may be answered by either a telephone operator or an emergency service dispatcher. the nature of the emergency (police, fire, medical, coast guard) is then determined. if the call has been answered by a telephone operator, they then connect the call to the appropriate emergency service, who then dispatches the appropriate help. in the case of multiple services being needed on a call, the most urgent need must be determined, with other services being called in as needed. a mural at a shenzhen elementary school showing emergency numbers used in mainland china emergency dispatchers are trained to control the call in order to provide help in an appropriate manner; they can be assisted by computer aided call handling systems (cach). the emergency dispatcher may find it necessary to give urgent advice in life-threatening situations. some dispatchers have special training in telling people how to perform first aid or cpr. in many parts of the world, an emergency service can identify the telephone number that a call has been placed from. this is normally done using the system that the telephone company uses to bill calls, making the number visible even for users who have unlisted numbers or who block caller id. enhanced 911 and similar systems like e112 can provide the location of landline callers by looking up the physical address in a database, and mobile callers through triangulation from towers or gps on the device. this is often specifically mandated in a country's telecommunication law. history of emergency telephone numbers operator assistance when an emergency happened in the pre-dial (or "manual") telephone era, the user simply picked up the telephone receiver and waited for the operator to answer "number, please?" the user responded with "get me the police," "i'm calling to report a fire," or "i need an ambulance/doctor." even in large cities, it was seldom necessary to ask for these services by number. in small towns, operators frequently provided additional services, knowing where to reach doctors, veterinarians, law enforcement personnel and firefighters at all times. frequently, the operator was also responsible for activating the town's fire alarm. when manual switching systems began to be replaced by automatic, or "dial" systems, there was frequently concern among users that the very personalized emergency service provided by manual operators would be lost. because numbers were different for every exchange, callers either had to dial the operator or look up the telephone number. an example of this was auckland, new zealand, before the introduction of 111 in the 1960s – the city had 40 exchanges, all with different emergency numbers, and finding the telephone number for the local exchange would require having to search through the city's 500-page telephone directory. this problem was at least partially solved in canada, the uk, and the us by dialing "0" for the local assistance operator in case of emergency, although faster service could be obtained if the user dialed the full number for the police or fire department. this system remained essentially unchanged throughout most of north america until the 1970s. 999 the first emergency number system to be deployed anywhere in the world was in london on 30 june 1937 using the number 999, and this was later extended to cover the entire country. when 999 was dialed, a buzzer sounded and a red light flashed in the exchange to attract an operator's attention. the emergency number 999 was adopted in winnipeg, manitoba, canada in 1959 at the urging of stephen juba, mayor of winnipeg at the time. the city changed the number to 911 in 1972, in order to be consistent with the newly adopted u.s. emergency number. electro-mechanical issues because of loop disconnect dialing, attention was devoted to avoiding the number being dialed accidentally by errant interruptions of the circuits by making them involve long sequences of pulses, such as with the uk 999 emergency number. this meant that "111" could not be used: "111" dialing could accidentally take place when phone lines were in too close proximity to each other. subscribers, as they were called then, were even given instructions on how to find the number "9" on the dial in darkened, or smoke-filled, rooms, by locating and placing the first finger in the "0" and the second in the "9", then removing the first when actually dialling. however, in modern times, where repeated sequences of numbers are easily dialled accidentally on mobile phones, this is problematic since mobile phones will dial an emergency number while the keypad is locked or even without a sim card. some people have reported accidentally dialing 112 by loop-disconnect for various technical reasons, including while working on extension telephone wiring, and point to this as a disadvantage of the 112 emergency number, which takes only four loop-disconnects to activate. 116 southern california telephone co. began using 116 as an emergency line for los angeles, california in 1946. 911 because of the design of u.s. central office (phone) switches, it was not practical to use the british emergency number 999 (as was briefly considered). what was up to that time unassigned area code 911 was chosen instead. the "1" as the second digit was key; it told the switching equipment that this was not a routine call. (at the time, when the second digit was "1" or "0" the equipment handled the call as a long distance or special number call.) the first 911 emergency phone system went into use in haleyville, alabama in 1968. on february 16, 1968, the first-ever 9-1-1 call was placed by alabama speaker of the house rankin fite, from haleyville city hall, to u.s. rep. tom bevill, at the city's police station. however, 911 systems were not in widespread use until the 1980s when the number 911 was adopted as the standard number across most of the country under the north american numbering plan. the implementation of 911 service in the usa was a gradual and haphazard process. because telephone service boundaries did not always exactly match governmental and other jurisdictional boundaries, a user might dial 911, only to discover that he had been connected to the wrong dispatch center because he had telephone service from one location but lived within the boundaries of another jurisdiction. electromechanical switching equipment still in use made it difficult to adapt to recognize 911, especially in small towns and rural areas where the call might have to be switched over a considerable distance. for this reason, there are still county sheriff departments that have toll-free "800" area code numbers. the rapid replacement of electromechanical switching systems in the 1980s with electronic or digital systems eliminated the problem of older switches that would not recognize 911. at this point, 911 service is available in most of north america, but there are still small, sparsely-populated, or remote areas (such as nunavut and the northwest territories in canada's arctic) that do not have it. enhanced 911 gradually, various problems were overcome; "smart" or "enhanced 911" systems were developed that not only would display the caller's number and address at the dispatch center but also could be configured so that 911 calls were automatically routed to the correct dispatch center, regardless of what central office the caller was served from. in the united states, most cities have e911 systems either in use, or in their emergency systems design plans. 988 on july 16, 2020, the us's fcc designated 988 as the "suicide prevention hotline" emergency number. the national suicide prevention lifeline, whose original phone number was 1-800-273-8255 switched to 988 on july 16, 2022. carriers were required to update their dialing plan programming nationwide before it can be implemented. many area codes which previously allowed 7 digit "local" dialing are now required to dial the entire 10 digit number as their region completes switch reprogramming. 17, 18 in france, many telephone exchanges were closed at night but it was still possible to make emergency calls. an operator had to connect the emergency calls only. in 1913, an automatic system was set up. it made provision for calling the police by dialing 17 and the fire brigade by dialing 18. as more manual telephone exchanges were converted to dial operation, more and more subscribers had access to these special numbers. the service was not widespread until the 1970s. france now uses 112, the european emergency number, as well as 17 and 18 for police and fire brigade, specific to france. 112 112 on a lifeguard tower in pájara, spain the cept recommended the use of 112 in 1972. the european union subsequently adopted the 112 number as a standard on 29 july 1991. it is now a valid emergency number throughout eu countries and in many other cept countries. it works in parallel with other local emergency numbers in about two out of three eu states. ip telephony in january 2008, the internet engineering task force released a set of rfc documents pertaining to emergency calls in ip networks. 000 prior to 1969, australia did not have a national number for emergency services; the police, fire and ambulance services possessed many phone numbers, one for each local unit. in 1961, the office of the postmaster general (pmg) introduced the triple zero (000) number in major population centres and near the end of the 1980s extended its coverage to nationwide. the number triple zero (000) was chosen for several reasons: technically, it suited the dialing system for the most remote automatic exchanges, particularly outback queensland. these communities used the digit 0 to select an automatic trunk line to a centre. in the most remote communities, two 0s had to be used to reach a main centre; thus dialing 0+0, plus another 0 would call (at least) an operator. zero is closest to the finger stall on australian rotary dial phones, so it was easy to dial in darkness. the telecommunications numbering plan 1997, also administered by acma, specifies that: the primary emergency service number is '000' and the secondary emergency service numbers are '106' and '112'. itu standard: 112 or 911 the international telecommunication union has officially set two standard emergency phone numbers for countries to use in the future. ap reports that member states have agreed that either 911 or 112 should be designated as emergency phone numbers – 911 is currently used in north america, while 112 is standard across the eu and in many other countries worldwide. emergency numbers and mobile telephones mobile phones can be used in countries with different emergency numbers. this means that a traveller visiting a foreign country does not have to know the local emergency numbers. the mobile phone and the sim card have a preprogrammed list of emergency numbers. when the user tries to set