Hmm, not sure. Browsing the first article, I can still see a need for operators that help the deaf, but traditional operator work is 99% automated now. Collect, person-to-person, bill to a calling card, bill to a third party....who does that anymore? Well, prisoners still call collect, but that's about it. We also did emergency interrupts; for a fee we would break into a busy line and let the person know so-and-so was trying to reach them. Then there were operators for directory, toll-free directory, and hotel billing. With a hotel, you can't wait for the end of the month to get your bill, so the operator calls back at the end of the call with time and charges, so they can bill the guest.
Aaaaand that concludes the more than you ever wanted to know about operators portion of our show.