Hi - I'm beginning to get a couple of phone calls that just dont respond when you answer. I initially thought it may be some thief just checking whether someone is in or not but this seems a bit too clever for your average Joe. I have been told that there are computers set up to ring numbers to see if they are answered so that they can pass these numbers on the sales/cold callers/survey companies. Has anyone heard of this or have they experienced this kinda thing ? Has anyone managed to get it stopped or investigated by the phone company ?