yes it is true. I am unsure whether you are being sarcastic?
yes "the box" controls all the communications/data flowing in/out of the residence but only the hard line stuff. other ways to do it is either "hack" the targets wifi (if they have it) and put an "open bug" on their system (this stuff is literally untraceable). from this, they can check if you're browsing terrorist networks (or how much time you spend on BOS
) despite whether you have an incontingo tab or not.
but this method is old fashioned and is used mainly in "low level" police operations (telstra helps the popo) and yes the police need a warrant. things that are like critical to national security and such are investigated by ASIS, ASIO, and whatever secret government agencies with god knows what type of technology they have
Now you have good reason to be paranoid. YOU'RE BEING WATCHED!!!
PS - Does anyone watch person of interest? it's like a show with mass surveillance and they save people from being murdered and stuff