I envy those of you getting only 2 calls per day. I get so many I either just let it ring, or like some of you, engage in a little time-wasting for fun.
The sophistication of some of these calls is uncanny. If I answer with a big "Hi, you've reached Zunardo! How y'all doing?", the computer invariable hangs up on me. If I want to speak with someone, I'll say "Hello? Hello? - and either hear a recording (I hang up), or get someone with a furrin accent I can have fun with.
And some of these shady organizations raising funds for veterans and such are using pretty sophisticated computer apps that are programmed to spit back a recorded human voice saying various things. One had me fooled for about 10 seconds, then it dawned on me it was a computer, so I questioned it and it said, "Oh, yes - I'm a real person. NOT a computer". I kept saying, "Now, you're just joshing me - you're not real". And it kept repeating the same recording, over and over. Funny, but also a little spooky.