I have sorted my cold calling problem about six months ago.Checked my phone bill and found I had only used it once in the past three months.Unplugged it and cured the problem.I get unlimited calls and texts on my mobile contract, so no problem there.The most recent cold call was from “Microsoft”telling me I had a virus and could they send me a link so they could sort out the problem on line.I told the gentleman on the phone that my computer was switched on(fib but I had my fingers crossed) so please send it.He then asked me for my email address so I made one up.He then spent 15 mins.trying to send it.I asked him if he was in contact with my computer and he said yes he could see all of my mouse movements, when I told him it was impossible as it was not switched on,it went very quiet and the line went dead.Heh,heh,cheered my day up.😂