Tricksy solicitation callers

In general TPP hates phones.  Maybe dislike is a better description.  Here's the problem, our household has had the same phone number for almost 40 years, so everyone knows it, everyone, and most importantly friends and family at a distance.  Now along comes smart phones and TPP was thrust into the modern era.  Seldom is the phone used for calling anyone, but the apps are great as is the access to email although no way more than one or two words get typed by thumbs. 
Unfortunately however the robo calls work, at around 10 am, the phone rings and the call will be soliciting donations for their oh so worthy cause.  Today's was interactive and almost tricked TPP.  This kind of robo call uses a series of pre-recorded statements and responses, and they were chosen probably based on some key word, the give away was the pause, the brief delay, like the other person was calling from Queensland back in the old days. Then some of the chosen responses didn't fit quite right, throw away responses because the program couldn't figure out your response. It took a couple of back & forths before TPP caught on to what was going on.  Basically it flunked the Turing Test.  Curiously it had a response when it was asked if it was a recording.  Somehow it was supposed to be reassuring that a real person recorded the snippets of dialogue.  "Well, what's the right response for this?"  And you hang up the hand set.  Annoying as lawn weeds. Does anyone know any annoying tricks to play on such programs?  Inquiring minds want to know.