xdB caused noise? Or just noise on line?

Hi all, back once again with a query.

Recently I've noticed there's a lot of noise on the line. Using the Quiet Line Test, it's sometimes intermittent, sometimes very prevailent, but often clears up after a minute or two with QLT. But it also seemed to start around when the exchange put me down through the SNR xdB from 6dB. Now I'm just wondering whether anyone would know whether it's due to the 6dB going down to 4dB or whether it's just noise on the line indicating something that still needs sorting out (weather getting worse makes any issues more easily noticable). Or whether noise on the line is normal after being put down the xdB?

I have noticed that my FEC errors are numbering around in the region of 45 per second. No errored seconds of any variety. And around 320 CRC errors/620 ATUCCRC erros for around 5 days uptime (since I last reset the W9970 for an update). Connection speed is 79963 (came down after reset 5 days ago; was 79999), Maximum is 83766.

Thanks all.

J1NG

Line should be silent, noise indicates a fault which needs fixing.

Agreed with Batboy's reply.

The noise on the line is the cause of the db change - NOT the other way round.

Report it as a Voice Phone fault to whichever company you pay Line Rental and Voice Phone Charges, avoiding mentioning Broadband.

Even if you never make Voice Calls etc.

In reply to a post by eckiedoo:

The noise on the line is the cause of the db change - NOT the other way round.

That's not how the xdB down to 3db works. You may have got confused when reading the op's post.

The lowering of the dB I thought was related to the recent xdB change where it attempts to lower 6dB down to 3dB. Which is why I asked whether it may be related to the change or not. But as both you and Batboy can confirm that there shouldn't be any noise, I'll give BT a call over it later on.

Thanks all.

J1NG

Yes, sorry it was a bit confusing after re-reading my post.

xdB lowered the normal 6dB that was stable (and little to no noise) down and increased my sync and maximum speeds. I am now at maximum, but a subsequent change to this, is more noticable noise on the voice line. I am now at around 4dB, but the noise is very noticable.

Is this still a voice line issue? Or just a side effect of the lowering via xdB?

J1NG

It's not a side effect of the lowering via xdB.

Thanks for confirming. Will be on to BT about it soon then.

J1NG

Then what is the explanation?

A joint that is getting worse maybe, without a lot more investigation work on the ground impossible to say, and noise issues can be transient too

In reply to a post by BatBoy:

It's not a side effect of the lowering via xdB.

+1
It's a genuine "audible noise on the line" problem. It is up to the engineer to diagnose the cause.

I disagree with �not mentioning broadband� when you report this fault ....

You�ll most likely get some �Johnny come lately� engineer who�ll PQ test, charge for fault not found, and go ....

Just had a frustrating week or two in this connection, starting with a very crackly telephone line and slowing broadband speeds (from ~40 to ~32Mbs) with BT. BT's speedtester agreed the speed should be better and they sent a BT local engineer. He changed the cover of the master socket but said the problem needed work by an Openreach engineer. A few days later the broadband speed went up to about 40Mbs and I heard no more from BT, but the line noise continued.
With difficulty, I then found a way of reporting this on the BT website and made a voice call to a call centre who agreed there was a problem after various tests had been performed. An Openreach engineer duly appeared and changed the master socket completely before disappearing and then returning after 'repairing' a fault between the street box and the exchange. The line no longer crackled.
But two days later we lost our landline phone connection completely while broadband continued to function. Another Openreach engineer found an exchange fault and we were back in business. And now the broadband download speed is approaching 50Mbs which is nice.
I think my biggest problem was convincing BT of the initial landline noise problem as their standard recommended test reported 'no problem'!