I received a call from this number and the caller is saying he is from Telstra Technical Support in Melbourne,. He wanted me to go to my computer to verify something [the CLI number that is unique for Telstra customers]as he said Telstra have been monitoring my internet server and it is sending files that have been compromised. I refused, and asked for his identity to prove who he says he is and he gave me a name James Martin with LID: D398313 and to ring Telstra Technical Support on (02) 8091 3268 to verify. I don't think it is worth checking his identity as this would be a scam. I checked on Telstra's URL /verify, and it says Telstra will send me a letter if any issues require my attention.