What do you do when you have a spam call?
For me it depends on who the caller states they are. If they say they are the IRS I have lots of fun, I insist that I paid my taxes, and that they are discriminating from me. One time I called them so much, they stopped answering their phones for awhile.
Just now I had one from a fictitious company, I told they I never heard of the company, so why were they calling. I asked another question and they just hung up.
When I am busy and it’s a robo-call, I set the receiver down and let it go through the whole message, just to tie up their lines.
I suggest you have fun with your calls.