While working for a company where I filed taxes for clients, any time the need arose that they needed to contact the IRS and speak to a real human on the other end I always passed on what I was taught in my taxes college class. Call the IRS 800 number and then answer anything you are prompted to enter a response always incorrectly, and the programs call centers use to queue, and route callers to specific "loops" (bucket umbrella type sorted subject" based on how each prompt is responded to dictates the path the call takes to be parked in the "on hold" queue until the choose your own adventure style automated program can interact with your call through any of the provided stops until the call is handed off to another choose your own adventure call loop".
By intentionally answering incorrectly the adventure has no where to go with the call, like "if you are giving us money go to page 2" or "if you're wanting money sent from us, go to page 295" and you answer "sparkly shiny things taste like the color 7 smells" the system hits a *what am I supposed to do with that, it's not even in this adventure book." and the system has the "doesn't use books or words for this library. And needs to talk to the Librarian". It so happens that the *librarian is human.
Another manipulation of call center program manipulation is when the "quality control recording" is programed to move the call into a escalation loop when certain triggers are identified. The triggers can be out of the average level of volume like yelling or even swearing and cussing. This is only useful with non humans on the other side, for human on that side this is only useful for getting hung up on.
