It was a robotic voice saying they were Nicole saying she was from Australian National Broadband and my internet was going to be disconnect if I did not press 1 to speak to a technician.
This was the result from Google when I searched:

After being invited to press "1" or "2" for next steps, people are then prompted for their personal information or a payment to prevent their internet being disconnected. NBN Co will never make these unsolicited calls to request payment or bank account details. If you get a call that you suspect is a scam, hang up