911
aid
alarm
ambulance
assistance
background
business
button
call
cellphone
center
clinic
contact
crime
customer
danger
department
dialing
emergency
first
hand
help
holding company
hotline
line
medical
mobile
number
office
phone
policy
rejection
rescue
resort
safety
screen
security
service
sign
support
symbol
technology
telephone
the communication
urgency
urgent
wastage
white
woman