answering
background
business
cable
call
challenge
communication
connection
contact
corporate
customer
discuss
discussion
equipment
finger
give
giving
hail
hand
hello
hold
human
isolated
line
listening
message
object
occupation
office
old
person
phone
receiver
red
retro
ring
selection
service
signaling
speak
symbol
talk
technology
telephone
us
voice
wait
waiter
white