Really appreciate your advice. What if I have the old type main socket without the test socket? Should I still remove the ringer wire?

Edited by deleted (Fri 27-Jan-12 23:03:37)

In that case, try to identify which is the first one fed by the incoming service cable (assuming you have more than one) and run your tests from that socket (having ensured that everything else has been unplugged).

If you do not have a NTE5/A fitted, you should also mention that to your CP / ISP. Again, it will require an Openreach engineering visit to replace the socket and thus regularise the line termination.

Edited by burakkucat (Fri 27-Jan-12 23:11:45)