911 Flashcards
911
Directs emergency phone calls to emergency services
Does not supply the callers name, address and phone number
Basic 911 provides
Bureau hold
Calling party disconnect
Force party disconnect
Emergency call ring back
Enchanted 911
Can provide ANI and ALI to emergency service
ANI
Automatic number identifier (phone number)
ALI
Automatic location identifier (address)
PERS
Public emergency reporting system
-automatically identifies appropriate local emergency service
Emergency ring back
Rings the callers phone if they hand up before necessary information is obtained (dial *99)
Calling party disconnect signal
Tone to alert the call taker me the calling party has hung up
Forced disconnect
Free a 911 line when a caller forgets to hang up or is unable to
Bureau hold
Maintain control of the call by enabling caller to disconnect until the caller taker releases it
Conference calls
Conference a call with another emergency service
11- police
12- fire
13- ambulance
(3 people at one time , caller plus two emergency services)
Switchboard
Private telephone systems with large bank of phones with only one point of connection to the public network
RES
Residential
PUB
Public pay phone
COM
Commercial single line
MUL
Multi party line
FEX
Foreign exchange service
CPB
Commercial push button
CTX
Centrx
VIP
Voice over internet protocol
WL2
Cell phone
Postal municipality
Callers mailing address and municipality to determine the callers location
Extended municipality
Name which identifies the recognized municipality
WSP
Wireless service provider
-must provide an accurate location of the cell phone
(Lat/long) or (GPS)
Triangulation technology
Determined by positioning the coordinates between the 3 closest cell towers (will narrow to about 4km)
GPS
Technology that can find location up to several metres
Uncertainty
Accuracy within a radial distance from the lat/long (edge of circle)
Confidence
Percentage that the caller is within the uncertainty area (should always read 90%)
First display
ANI/ALI
Call back number
Phone number
Location of tower
Second display
Within 50secs
Requests cell phone location through the wireless service provider
ANI/ALI not found
No address in data base 4 party lines Exchange not in address database ANI failure equipment problems VOIP tech
VoIP
Voice over internet protocol
Uses broadband internet connection, call 911 you connect to operator and operator connects you to emergency services
911 call cannot be ignored
ANI/ALI info obtained but there is no voice:
1. Commit the call and unknown priority 4
2. Call the number back
3. Confirm info
If no ANI/ALI
1. Confirm with CERB if contact was made or info obtained by them
TTY
Teletypewriter
Device with keyboard and small screen for hearing or speech impaired
