Broadband drops when phone rings

armadillo · Feb 07, 2011, 19:26:31

I can't see the relevance of filters to a line that drops with incoming calls even when no phone is connected. That has to be either a line fault or a router fault.

Glenn · Feb 07, 2011, 19:32:51

I had a similar problem, which was caused by the line shorting to earth when the phone rang.

lozcart · Feb 07, 2011, 20:29:43

Quote from: klipp on Feb 07, 2011, 16:22:08
I had this exact same problem and managed to fix it by double filtering my telephone.

Thanks Klipp, I've tried double filters on my phone but it hasn't helped

lozcart · Feb 08, 2011, 19:36:45

My line dropped and reconnected today when I had a phone call, with the reconnection the reported uncanceled echo is +2!!

Rik · Feb 09, 2011, 10:01:14

Any word back from BT?

lozcart · Feb 09, 2011, 10:05:06

No Rik, nothing as yet.

Rik · Feb 09, 2011, 10:05:33

lozcart · Feb 11, 2011, 14:27:34

I've still got the same problem. BT have apparently run tests on the line and are reporting it's ok.

IDnet are pushing it back to BT to arrange another engineer visit.

Rik · Feb 11, 2011, 17:00:42

BT are being dense.

lozcart · Feb 14, 2011, 17:49:25

BT are coming again on Wednesday, hopefully this time the engineer will actually listen to what the problem is and to what has already been tried in attempting to solve it. The last engineer was determined to blame the fault on my wiring/equipment.

Rik · Feb 14, 2011, 17:51:31

We'll keep our toes crossed for you.

lozcart · Feb 16, 2011, 15:13:32

I've got a much better engineer out this time who listens and is determined to find a solution to the problem, but so far he hasn't resolved it.

He has picked up the fault but can't find a cause, when the phone rings he is getting lots of CRC errors. He has traced the line from the house to the green cabinet and can't find a fault. He has tried three new lines from the cabinet to the exchange with no improvement. He has done a lift and shift of the line in the exchange still no joy, he has just allocated the line a new number, tested still not right.

I'm not sure on his next plan of action I'm waiting for a call, at least he confirms there is a fault on the BT side of the connection.

He tells me he can replicate the fault outside my neighbours house in the road but not at the cabinet, this to me would indicate the fault is between my house and the cabinet but he doesn't think so. I'll update what happens later.

Rik · Feb 16, 2011, 15:40:16

Sounds like you've got someone with a bit of nouse.

Glenn · Feb 16, 2011, 17:30:09

A BT engineer that has pride in his workmanship.

lozcart · Feb 16, 2011, 17:55:22

Still not sorted, BT have now given up and fired it back to IDnet to run some tests. The results of those will determine their next action. The engineer said this is the first time he hadn't sorted a problem but thought the fault was between the exchange and the green cabinet.

During all this my uncancelled echo has been up and down like a fiddlers elbow ranging from +6 to -17 I asked the engineer about this value but he had never heard of it and so couldn't comment.

At lease they have reset my target noise margin so I'm current syncing faster.

Will wait and see what tomorrow brings.

Rik · Feb 16, 2011, 17:59:42

Curiouser and curiouser.

lozcart · Feb 18, 2011, 09:38:54

BTs third visit is now arranged for tomorrow.

Simon · Feb 18, 2011, 09:40:46

Third time lucky?

Rik · Feb 18, 2011, 10:54:49

lozcart · Feb 19, 2011, 16:02:30

So far so good

I had a different engineer call today but he did contact the previous one to get details on what he had tried. To start with he was at a bit of a loss as what else to try but then remembered that the green cabinet I'm connected to has two circuits coming into it from the exchange. He found out that my existing feed and the three connections they tried on the previous visit where all from the same circuit, he decided to try a connection from the alternative feed.

He went to the exchange and cabinet and swopped my line over, straight away there was a drop of 10db in my attenuation and a increase in around 5000Kbps in sync speed. He tested ringing the line and found no drops and very few CRC errors. We reconnected my router and tested 3 or 4 times again no drops so

it's sorted.

If it sorted then the upside of the problem is I've now got a much better line with a attenuation of 38 rather than 52, a sync of 10921 compared to 7000, noise margin of 6 compared to 15 and an uncancelled echo of -19.3 compared to a +4.

I will monitor it over the next few weeks but first impressions are the problem is resolved.

Rik · Feb 19, 2011, 16:04:35

That's great. If you get a good engineer, they can work wonders.

MisterW · Feb 20, 2011, 10:00:30

Quotean uncancelled echo of -19.3 compared to a +4.

That looks MUCH better...

lozcart · Feb 25, 2011, 19:38:22

I'm not having much luck. My connection has been solid with no drops for the last six days that is until this morning when my connection dropped completely. I contacted support who tested the line which showed a line fault that BT were aware of. It is still down this evening despite saying it should be fixed by 6.00pm.

The weird thing is if I now ring my phone line I get a sync and PPP while I'm on the phone but can't get any data through put when I put the phone down the sync drops and the router indicates no broadband detected. This is the reverse of what was happening before. As it's still down I don't expect a fix now until Monday.

Steve · Feb 25, 2011, 20:15:46

At least that to me is fairly classical of a line fault.

Rik · Feb 26, 2011, 10:07:39

And a classical, timely, BT response.