This Modern World
(apologies to Tom Tomorrow
Call Waiting and Call Forwarding cost less then $.01 cent to offer yet the company charges $4-$7 for such features.
I've got another. They charge one dollar per month to not make your number public. That is, a human being when setting up your account clicks on a choice of "no" for publication, then you are charged a dollar a month FOREVER for them not to go in and click it again.
That's not a "service." That's extortion, pure and simple. And they get tens of millions (at least) EVERY MONTH from this scam.