Get the cable with smaller plugs, and plug it between the socket next
to the white labelled one on the bottom of the Livebox and the ADSL
side of a filter (preferably one plugged into the main phone socket)
Plug the Livebox into the mains using the mains adaptor
Wait for the lights to settle down.
If the @ light is flashing
quickly (about 3 times a second), the line is not ready.
If the @ light is flashing about once a second, it's time to start
setting up. You will need to move your computer near the Livebox to do
this step.