The Do Not Call Register gives Australians the opportunity to stop receiving calls from telemarketers (which includes real estate agents). Examples of such calls would be calls offering an appraisal of a property, informing buyers of property for sale, offering your services to obtain a listing, or a follow-up call to a person who recently visited an open home. Naturally, there are exceptions if the person gives their consent. So, check the Do Not Call Register, which is best accessed at www.donotcall.gov.au