cancel
Showing results for 
Search instead for 
Did you mean: 

What's the white wire for on the BT side of the telephone?

VileReynard
Hero
Posts: 12,613
Thanks: 630
Fixes: 20
Registered: ‎01-09-2007

What's the white wire for on the BT side of the telephone?

I've been getting some crackling/strange ringing behaviour on my phoneline.
Rang 151 and BT acknowledged a likely problem within about one minute.
Engineer arrived on site 3 hours later  Smiley Smiley Smiley Smiley Smiley
Problem caused by builder damaging BT cable externally, about 5 years ago.
Water had corroded the white wire, so that simply touching it caused interference...
New box put on wall.
No charge  Smiley
Is it likely that my broadband will improve?
[Just got an automated phone call from BT - "press 1 to confirm fault corrected"  Cheesy ]
I'm very impressed.

"In The Beginning Was The Word, And The Word Was Aardvark."

6 REPLIES 6
Peter_Vaughan
Grafter
Posts: 14,469
Registered: ‎30-07-2007

Re: What's the white wire for on the BT side of the telephone?

BT supply normal phone lines as 2 wires called A and B, so it will be one of those. Details here
As for a faster broadband it depends on what happened to the cable. Does your ADSL equipment sync any faster than it did before?
VileReynard
Hero
Posts: 12,613
Thanks: 630
Fixes: 20
Registered: ‎01-09-2007

Re: What's the white wire for on the BT side of the telephone?

Strangely enough, it didn't show anything different - if anything it has got worse - but it suffered a lot of resyncs during the
replacement of the corroded wire.
I think I'll try for a reboot now.  Cool

"In The Beginning Was The Word, And The Word Was Aardvark."

Peter_Vaughan
Grafter
Posts: 14,469
Registered: ‎30-07-2007

Re: What's the white wire for on the BT side of the telephone?

Also is your SNR/Margin any better?
If not then the fault may only have been affecting the voice frequencies and not affecting the much higher broadband frequencies.
VileReynard
Hero
Posts: 12,613
Thanks: 630
Fixes: 20
Registered: ‎01-09-2007

Re: What's the white wire for on the BT side of the telephone?

The Noise margin has, sadly. increased and the line attenuation is unchanged.
Amazing how a visibly corroded wire can do broadband!

"In The Beginning Was The Word, And The Word Was Aardvark."

HPsauce
Rising Star
Posts: 6,766
Thanks: 18
Fixes: 1
Registered: ‎02-02-2008

Re: What's the white wire for on the BT side of the telephone?

The margin may have been set higher at the exchange if it saw disconnections. Hopefully it will recover.
Always best to turn all BB kit off when the wires are being worked on.  Sad
Anotherone
Champion
Posts: 19,107
Thanks: 455
Fixes: 21
Registered: ‎31-08-2007

Re: What's the white wire for on the BT side of the telephone?

Very definitely right HP.