Phone interfers with DSL

Can anyone offer some suggestions.

Everytime I use my phone, my snr drops significantly causing a loss of sync. I have tried the obvious and used 3 seperate filters (all of which I know are ok, 2 are brand new), a filtered faceplate, different phone, connected to test socket, daisy chained filters etc, all to no avail.

BT can't find a fault on the line (even though I am waiting for the engineer who visited the exchange to report findings). There is no extension wiring (house only has master socket).

Anyone with any possible suggestions on what might be causing this?

Thanks

Wiring? Is your wiring standard?

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Wiring? Is your wiring standard?

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It would seem so. There are no extension points, just the incoming cable to the master socket, so I would have to assume so.

How would I tell?

If you only have your BT master socket & no extensions/wiring coming from it the problem is not on your side.

It sounds like some kind of line fault, but thats about the limit of my knowledge on this subject. Does it happen every time you use the phone & does it happen at any time when not using the phone?

You *may* have a line fault that the 'normal' line test is not picking up, an HR (high resistance) dis fault. Since this fault is only apparent when used in conjunction with your broadband, then you will need a broadband skilled engineer to come and fault the line. IE You will have to report this via your ISP.

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Does it happen every time you use the phone & does it happen at any time when not using the phone?

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Hard to say. At the moment yes, but previously it had been happening ocassionally.

Then unfortunatley, as Zarjaz, said to deal with this you will need to go through your ISP.

Which ISP, i.e. good customer service?

It might also be useful to see your line stats. Someone complaining about this problem last week was right on the limit for line attenuation and was on a line speed that his line obviously could't properly support, because he had a SNR of zero.

It may sound obvious but did you try replacing your "phone" as well, as it might not be a BT line fault if you had a "duff" phone to terminate your broadband cct?

see original post..... filtered faceplate, different phone, .......

Has been tried

Quick line stats.

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Bandwidth (Up/Down) [kbps/kbps]: 448 / 2.368
Data Transferred (Sent/Received) [KB/KB]: 117,00 / 441,00
Output Power (Up/Down) [dBm]: 11,5 / 17,5
Line Attenuation (Up/Down) [dB]: 31,5 / 59,5
SN Margin (Up/Down) [dB]: 16,0 / 11,5

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I know my line is at the extremities of the limits. But it can sustain at times a sync as high as 3000.

The real issue is why the telephone is having such a large influence at times. I say at times becasue at the moment it only drops the snr by about 0.5-1db, whereas yesterday it was more like 4-6db (and nothing at my end has changed).

Fault logged with ISP now, so we'll see what happens next. Makes me wish I could have kept me fixed speed when I migrated.

Thanks All

Vigalent

We have had the same problem as you ever since we changed ISP and went on to Max six months ago. We logged 2 faults with BT through our ISP and also 2 voice faults with BT, but because the problem is intermittent it is very difficult to fix.

We have a similar down attenuation as you, 58.0. Things seemed to settle down after I logged the second voice fault and we were getting speeds of 2 or 2.5Mb. However this last two weeks we have never got more than 1.5Mb and the phone problem is back along with other resyncs. Our ISP says they have logged a fault with BT 2 days ago and I am still waiting to be contacted by BT.

I have been thinking of going onto fixed speed. What fixed speed were you on before? We were originally on 1 but then got put onto Orange's LLU on 2Mb. I am worried that with our attenuation BT will say the max we can get is 1Mb.

Does anyone know if the fact that we got 2Mb on LLU means we can get a fixed 2Mb from BT Wholesale?

Blossom

Did you this problem resolved? Reason I ask is I have exactly the same issue :-(. Only suggestion from BT is to move from Max back to fixed 1mb

Provide some line stats, details of internal equipment etc and the history behind your problems as your problem may be different.

Modem is DG834G v3 connected direct to master BT socket. Phone is in same filter as modem

After a couple of visits from BT engineer (including digging up the road to replace a cable "with conditions" on it which did not solve problem, I know from his box of tricks that I am just under 4km from the exchange

Line stats are
Connection Speed 2336kbps Down 448kbps Up
Line Attenuation 54db 15.5db
Noise Margin 12db 18db

Interleaving is ON and BT raised my SNR margin to 9db in attempt to fix fault

Issue is that using landline phone causes disconnection... this seems to happen in one of two ways:
SNR Drop.... when I pick up the landline phone you can see the margin drop to below zero then loses sync
Immediate Drop... when I pick up the landline phone the connection speed (and all other readings) go to zero immediately

I have tried using test BT socket, different filters, phones, cables between socket and modem, and even tried using the homehub that normally gathers dust... all with same result.

So... I was hoping the original poster had a solution. I think BT are about to recommend I move back to 1mb fixed line

Thought I'd post an update to my earlier post in this thread.

We were put onto 2Mb fixed speed last week after the same problems as everyone else on here. Our attenuation was about 58.

We still had problems with disconnections, but at least didn't get the drop in sync and subsequent speed drop we had on Max. We then got a Speedtouch 585v6 and we haven't had any ADSL disconnections for a whole week.

Blossom

Thank you for the update. Perhaps my slightly lower attenuation may mean BT will put me on a 2mb fixed? I can but ask.

Yes I did. I got a BT engineer out to check the wiring. During his tests he found a poorly terminated cable (BT's side of the wiring in the house) and a very loose cable termination in the street cabinet.

In his words 'it just fell off in my hands, I'm supprised your telephone line work at all, let alone broadband'

Since then, no problems at all, and I can achieve a higher sync than ever before.