No immediate reply to my greeting when I answered ... then after a few seconds "hello? hello?" - at which point I knew it was a robocall scammer. The caller (indian accent) claimed to be from Telstra internet support and told me security issues had been detected coming from my internet and he could help me fix them. He proceeded to query how did I access the internet - computer, phone, other? Then he was very keen for me to put the phone on speaker and follow his instructions. When I told him I was out on a walk he asked if he could call back in 10 minutes. At this point I politely told him to try his scam on somebody else and to have a nice day :)