Recorded Message saying "We have detected unwanted interruption from your IP address which shows your smart security has been breached which may cause disconnection of your internet line within 24 hours Press 1to talk to technical team"
I have been receiving these calls from different numbers for days eg (02) 8436 8414.
I called one mobile back yesterday (since deleted) and and the person who answered had no idea and was going to contact telstra about it.
I rang the above number back today and got a message saying it was disconnected, so it seems the Scammers are piggy backing on people's numbers.
I have also received some of these calls on unknown numbers.