agent
assistance
assistant
business
businessman
busy
call
calling
center
centre
client
communication
computer
concentrated
concentration
concerned
consultant
customer
desk
discussing
earphones
explaining
focused
headphone
headphones
headset
help
helpdesk
helpline
hotline
internet
it
laptop
man
microphone
office
online
operator
phone
representative
sales
service
speaking
support
talking
telemarketing
telephone
telesales
thinking
working