One of the many numbers used by Telstra's annoying sales centres. One by one I'm blocking them, although I suspect they have unlimited numbers to call from and keep using different ones. Their sales techniques are extremely dodgy. I have a Telstra account but I'm nearly off contract. They try to sell me deals which involve taking a 2 year contract (which I didn't realise last time until after a long phone session) which I've made clear I'm not interested in.