There is no "advisory" airspace declared within Australian territory, so no "Air Traffic Advisory Service".
There is no Class F airspace declared within Australian territory.
What is not declared as Class A/C/D/E is declared as Class G.
Traffic information in Class G airspace is a component of the FIS, and detailed in AIP GEN 3.3 2.13.
Forget about what ICAO may or may not say and political conspiracy theories.
Go and sniff the roses ......