Related terms:
psap
fcc
voip
dial
call
trunks
caller
wireline
dispatch
enhanced
ali database
address
operator
emergency
telephone
emergency calls
emergency number
emergency service
mobile phone
telephone company
emergency phone number
emergency telephone number
public safety answering point
Wikipedia sources:
9-1-1
Enhanced 911
Emergency telephone number
Context for words:
national
emergency
number
association
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