英文關鍵字
business
close
closeup
communication
customer
device
dial
dialing
emergency
help
helpline
info
information
line
number
phone
pressing
selecting
service
support
telephone
tone
touch
touchtone
英文關鍵字
business
close
closeup
communication
customer
device
dial
dialing
emergency
help
helpline
info
information
line
number
phone
pressing
selecting
service
support
telephone
tone
touch
touchtone