Don't know if you're making a joke, but call center workers using a phone is not the same thing as a call center worker doing all their work on a phone. Worked in a call center for 4 years, one thing everyone needed after their shift was to just STFU for a few hours to decompress.
https://www.youtube.com/watch?v=XthLQZWIshQ
https://en.wikipedia.org/wiki/Sorry_to_Bother_You