The usual type of marketing-related nuisance call despite my number supposedly being 'silent'. From Sydney (I'm in Melbourne) and every evening between 5 and 6 this week that or other Sydney-prefix numbers - these unsolicited operators must each have an array of them - ring; I pick up; there's a few seconds' silence, then (if you wait: I am no longer giving them the pleasure) on comes the background of a noisy room, and then the cunningly vague 'hook' of a spiel begins. Interesting that no results have been found for this number already.