Its a bunch of indians calling apparently from telstra to scam you by claiming your internet has been hacked and they can sort it out for you for a fee.

Indian caller with call centre noise in the back ground.Got quiet offended when i told him he was calling a private number and to remove me from his list....latest cold caller after signing up for a competition...

I called back number (03) 9982 1912 reached voice mail but did not say from what company.

Spam call I believe. They ring you and since I screen my calls and didn't recognize it I left it. I then rang it back, but it went straight to an answering machine. Idk how they (whoever they are) got my number or what shonky business they are.