I'm hoping the new VDSL signal will go over the same piece of wire when it gets fitted next week.
Well I had Infinity connected yesterday and it was not quite how I expected it to go. The two engineers that came used the cable between my master socket and the ADSL socket but not quite in the way I imagined.
They replaced the ADSL only socket upstairs with a new master socket using the old ADSL cable as the link. Downstairs they replaced the old master socket with some other new Openreach branded socket.
So now what happens is the combined signal comes into the house downstairs via the old master, goes upstairs via the old ADSL cable to the new master socket. At this point the VDSL signal is split off and goes to the Openreach modem and the voice signal goes back downstairs on another pair of wires back to the old master socket from which it is then split out to the two BT fitted extension sockets we have.
O2 Broadband Standard