Caller claimed to be from some Call Blocking Dept (??) asking if I wished to extend the blocking of unwanted phone calls. As soon as I suggested that this was itself a scam call it was disconnected. Lady caller had a strong Indian (?) accent. Caller used my surname in order to sound legit. The callers's phone number was last listed as belonging to a resident of Asquith NSW. I called back the number and received a "could not be connected message. Telstra continues to sell phone numbers to scammers. They should take some responsibility for the loss, distress and disruption caused by these criminals