I must have received 100 calls from people with sub-continental accents calling from (03) 8... numbers wanting to offer cheap, or cheaper electricity. These days I just hit the green button and then the red one. Will they ever stop?!
I also receive at least three calls per week which are clearly scams. EBay, ANZ Bank, Telstra, the ATO; you name it. Some robocalls and some live. My standard answer is "your mother would be ashamed of you".
mick