If you visit the page for "Parental Controls" then right at the top is the picture of the Home Hub router and the "No software to setup"... because it's your connection that has the filter rather than local software:
From appearances this looks like a per-customer opt-opt, and then if opted-out (unfiltered ... well, still Cleanfeed) then it goes down to a per-device opt-out.
ADSL: http://www.productsandservices.bt.com/products/broadband/wir...
Fibre: http://www.productsandservices.bt.com/products/broadband/wir...
This does give them control over the LAN.
If you visit the page for "Parental Controls" then right at the top is the picture of the Home Hub router and the "No software to setup"... because it's your connection that has the filter rather than local software:
Parental Controls: http://www.productsandservices.bt.com/consumerProducts/displ...
From appearances this looks like a per-customer opt-opt, and then if opted-out (unfiltered ... well, still Cleanfeed) then it goes down to a per-device opt-out.