Unsolicited call. Did not answer. No message left but when I returned the call there was a voice mail from an Australian female noting that her mobile number has been used by scammers and to not engage with them and to block the number.

Scammers with Indian accent in a call centre pretending to be calling from Telstra saying that my NBN connection had been downloading malicious files over the past weeks.

As above: Scammers using this number. Do not answer or engage. Female voice recording that scammers are using her number.

Caller: Claimed to be from Telstra

Had a missed call from this number earlier today then I picked it up this afternoon. Claimed to be from Telstra calling about my internet connection. When I said I don't have my internet with Telstra, the woman hung up. Must be a scam, don't give them any details.