The new Australian law banning telemarketers from ringing telephone numbers on the national "Do Not Call" register is now in force.
Registration at https://www.donotcall.gov.au/ This is fairly easy, but it takes a month or so to come into effect. Note that charities, religious organisations, political parties and candidates and social and market researchers are still permitted to ring telephone numbers listed on the register.
Note: Choice running a campaign to have these exemptions removed.