ok i have added 4 new pictures, all boxes are fed from the one black cable that has no numbers written on it unfortunatly. The BT box has a wire joined to it but the other 2 boxes the wires are straight from the black cable with no joins.

So the colours for each box from the black cable are

TT Blue/White

IDnet Green/White

BT Orange/White

I will now draw a digram of all wires coming from the black cable

How many wires are actually coming from the black cable? And what are the colours of them all? Do any have a second colour/stripe?

I can see: Brown, Grey, Blue, Green, Orange and Whites.

If there Bl x2, Or, Gn, Bn & Gy then it is likely to be CW1600 phone cable and care needed to ensure the right whites are used with te other cores.

Edited by MHC (Fri 26-Apr-13 13:50:14)

diagram and close up of black cable now uploaded

10 wires

5x white

Grey
Brown
Blue
Green
Orange

In reply to a post by kevc:

TT blue/white
IDnet green/white
BT blue/orange

Where does the second blue come from? Have seen your later post.

Have a close look at the white wires - are there any small coloured marks?

Do the pairs look as though they are twisted together in the cable?

If so, that is likely to rule out a split pair and the cross talk it would cause.

Edited by MHC (Fri 26-Apr-13 14:06:37)

another 2 photos of wires coming out of the black cable, it really does not look like they are twisted and the wires are plain white with no other writing or colours on the wire.

they are twisted with a fairly low frequency not like a pigtail

Certainly from what i can see what is coming out of the black cable there are no twists.

The only way to look closer would be to cut a bit of the black off, i wouldnt want to damage anything tho.

Thats a 5 pair PET UG cable, so the colours look look right for the pairs.

No doubt that a split pair on this cable would cause the issues reported, trouble is, with them being pulled apart right down to the cable butt, you can see nowt. You'd have to get to the other end of it and work back.

Zarjaz has confirmed the cable type but it is going to be difficult to prove which wires form a twisted pair.


I really think you have gone as far as you can, some of us might go a little further but do have relevant experience. You need to document EVERYTHING and get hold of IDNET, TT and BT and tell them all that there is a problem. Get IDNET and TT to tell BT that you need a technician visit but you only want one visit to look at all three and get the BT fault reference for it.

Then, get onto BT and tell them the same, insisting you need a visit but it has to coincide with the requests from the other two - when they initially refuse insist on escalation of the problem.