Claimed to be from Telstra technical dept. informing me that someone has been using my network. The IP address they gave me was a standard 192.168.0.1 that I am not even using. This is not the first call from these people and is a complete scam. Most likely not even the correct number as they are also using number cloaking. They ended up hanging up on me when they could see that I wasn't calling to fall for it.