Though some of them are very good! The first time I had a really good one for the first couple of responses I thought I was actually talking to a human as it had the right generic responses to the likely first set of questions and the right pause to allow you to answer before the next response. Usually I now just say "hello" to an unknown or private number and unless it's clearly a human (for instance a company I am actually dealing with!) just wait and most of the time it'll then carry on with the script after a pause and I just hang up.Most seam to be using recorded messages now so you can not tell them to foxtrot Oscar.