How can I stop telemarketers from calling my parents?

If telemarketers constantly call your parents try registering them with the government's Do Not Call Register.

Older people are often taken advantage of by telemarketers.
" A telemarketing call is a call offering to supply, provide, advertise or promote goods, services, land or a business or investment opportunity or a call soliciting donations." (Australian Communications and Media Authority).

Visit Do Not Call Register or try registering by phone 1300 792 958.