Now I switch back to Telecom and found out the the socket are 3 wire system.
I just put in series another Master socket so its will be near my PC/DSL modem, using no. 2 and 5.
Using a filter on each jackpoint for connecting devices.
Everything work at the moment inclduing DSL modem except one of my old phone which require the 3rd wire for ring tone.
( the old phone works but not able to ring when phone in). My cordless phone is fully functional.
Just read throught some of the thread, best for me is to repalce all the old M/s socket with the newer
2 wire socket for best DSL performance. Can I just do that ?
Also intend to install Freeview Satellite late on which I understood the 3 wire can be affecting freeview as well.
Many thanks for all replies.