background
black
booth
business
button
call
center
chat
classic
communicate
communication
concept
connect
connection
contact
conversation
design
dial
electronic
element
equipment
handset
help
hot
icon
idea
illustration
info
information
isolated
line
menu
number
old
operator
phone
receiver
retro
service
sign
signal
speaker
support
symbol
talk
technology
telecommunication
telephone
web