英文關鍵字
answer
booth
busy
cable
call
caller
chat
communicate
communication
connect
connection
conversation
cord
dial
dialing
display
electronics
equipment
footage
handset
history
illustration
line
machine
man
mobile
mouthpiece
network
number
office
operator
person
phone
receiver
ring
silhouette
support
switchboard
talk
technology
telecommunications
telephone
urgency
white
with