Remove all the ring wires from all sockets, but make sure all the phones ring when you've finished. They should, because all ADSL filters should contain their own ring capacitor, but some of the cheaper ones do not. You only need wires in terminals 2 and 5 on each socket.
P.S.
this page will explain why some sockets have 2 ring wires, and some only have 1.
Edited by deleted (Mon 05-Feb-07 15:30:04)