In reply to a post by MHC:

In reply to a post by RobertoS:

If the cat5s are just T2 and T5 then fine. As long as the possibility I raised before of cross-overs has been eliminated by the OP. He hasn't said so.

But then - what do I know .

It would probably not work as the pins used on the RJ11/RJ12 will normally be 3 and 4. Even if teh others were connected they are unlikely to cause any problems as there will be no connection at teh NTE socket.

Given he may have a noise problem, for some reason he's losing bit-loading, might as well change everything as much as possible to narrow down eht problem. What's a few quid when you've already replaced eht VDSL modem?

The important difference between a BT ADSL filtered faceplate and an ADSL Nation XTE-2005 is that the XTE-2005 filters the ring wire on all connections, except perhaps the A/B terminals.

You lost me a bit there. There is no ring wire on the A/B terminals, because it would be C.

All filters that meet the relevant SIN requirements, including the BT filtered faceplate, recreate the ring wire after the filter with a capacitor. They don't really filter the ring wire so much as make a new one.

It won't but a twisted pair might ... the line will already be twisted pair and if there is a noisy PSU close by that last short length may have been a weak spot.

On an long ADSLmax line, I recently changed te flat filter to modem cable with twisted pair and achieved a 10% improvement.

At least you know that you are not the cause ... Once outside trying to track it down can be interesting.