A delay after you answer. Overseas sounding clicks on the line. Definitely a SCAM. Wants to tell you about making money online.I hung up then called the number back. I received a recorded message "Optus advises that this number has been disconnected."

Caller: some name Rodreges.

I'm responding to your stated interest of earning money on line..... blah blah..
Of course, I had no stated interest.
pretty sure it is a scam. Did not wait too long on the line but he know my first name.