Just another scam!!!

Just had this number ring and when I answered hello twice they eventually said hello with a foreign accent.

And another call just now! 6.18pm

got a call from this one, phone ID'd it as International so I ignored it.
other reporting sites also list this is a hang up, auto-dailer sniffer.

Just answered a call from this number claiming to be Telstra (with a heavy Indian accent) advising that I have a serious problem with my internet. When challenged he immediately hung up.

Received a phone call, answered and they hung up. Rang yesterday and they said they were following up on my telstra data plan. I am with optus, I hung up.

Just answered a call from the above number.
it/they just hung up.

Came up as 061332111650 on my phone. Did not leave a message. Clearly someone I don't know.