A telemarketer is nothing more than a "Buckfitch". Someone with human form but lacking human qualities. Terrorists in their own special way. Earth turds, planet waste, No more useful than a high order zero with a an attitude.
" there are several hundred thousand numbers in the computer system, and about 100,000 employees nationwide, working simultaneously. They make the calls from different locations, just as the numbers are distributed among these places."
So you'r telling me that if I'm polite and ask this one of 100,000 employees who's calling from one of several/many locations who can't afford to spend any unnecessary time on the line because time is money that he/she is going to take the time and remove me from the list. I prefer my method which is to put them on hold until they get the message. They are people and they are intrusive and because they are anonymous they could care less if you are rude to them. I actually think they chuckle over the rise they get out of people. So just tell them that the master of the house will be right with them, just hang on, and then put the phone on mute and set it down. My guess is they will eventually get the message ... which is, don't waste your time calling this number.