Scammers! do not respond to the call. they'll try to get you to install apps on your device for remote access.

Do not respond to this caller. Indian sounding accent posing to be NBN. They try to gain your trust asking you to google search "my 1p address" and reading out the ip address. Note the number '1'p - not ip. The search returns a static ip address. I didn't get very far with them, buy they were leading me to install applications on my device at which I terminated the call. I can only assume they would be remote access applications.