quiet line

does anyone know what causes a line to go quiet? as recentley people have been having trouble hearing me on the phone. ironically the SNR in my router has dropped by about 5Db and the attenuation as increased by 2Db.

thanks

people have been having trouble hearing me on the phone

Maybe it's just a rubbish phone (I've just changed a load of Binatone DECT phones for this very reason).

ironically the SNR in my router has dropped by about 5Db and the attenuation as increased by 2Db.

Has your connection speed changed (if the margin has dropped by around 5dB, it could either be due to BTs DLM putting you on a lower target margin, or you router has connected at a higher speed - resulting in a lower margin during the evening & overnight).

im on a fixed 1Mbit connection so cand see how the DLM can affect me. the line is quiet on every phone i plug in too, already got another phone to test

thanks

I know this sounds irrelevant, but is your ISP Tiscali/Pipex/Nildram?

Tried better filters?

hi, my isp is Freedom2Surf. my connection runs from a adsl faceplate, so no filters needed.

thanks

martyn

plug a phone into the test socket inside the nte5, behind the faceplate and try the phone from there with everything else disconected. If possible try another phone

already tried that buddy with about 5 phones lol

What was the result, still quiet? If so then report a fault to your phone service provider. Anything else you have tried?

OK so as I understand the issue -

"Trouble hearing me on the phone. Ironically the SNR in my router has dropped by about 5Db and
the attenuation as increased by 2Db".

SNR is the ratio of clear Signal in relation to Noise, if it has dropped
then to me that would tend to be about
what I would expect.

Attenuation and SNR can fluctuate a small amount and that could easily be as a result of physical problems
with the line.

Generally a full install is best and they are far less likely to fail.

I have always said that in the event that there is a
phone issue that you can actually hear, then it is really a good idea
to call that up and report it - I usually focus on reporting the phone fault, not the DSL
fault, as most Telcos set much higher standards for PSTN (Phone services) than for DSL,
as there is a huge range of issues that can happen with DSL, and PSTN is much simpler
to fix, so the "Fobinator scripts" are brought out (eg Oh that must be your modem /
problem etc).

You might find punching your figures into my tool helps (here www.adslgeek.com
though it is in development at the moment, and might have some probs. As you had
said that your SNR had dropped by 5dB that might be irrelevant unless you were
right near the end of range.

Was the DSL speed impacted (I would expect that) or was there any other symptoms?

Hope this helps..

Aslan
www.adslgeek.com
[Dsl modems, ISP rankings and all things DSL]

As you say SNR (Signal to Noise Ratio) is how powerful the signal is compared to noise. However ADSL devices invariably report the SNR Margin which is not the same thing.

I told him that a while ago but he ignored me .

IIRC it also isn't the first time he has replied to the latest post in a thread without linking to the post he is replying to. I hardly see this stuff as a reply to me which is how he posted it.

Edited by RobertoS (Sat 19-Jul-08 22:35:50)

He's learning quickly though. He's certainly taken on a major task with his site.

I have just found that apparently Freedon2Surf now belong to Tiscali. Reference my earlier post asking if your ISP was Tiscali/Pipex/Nildram.

It seems to me you have probably been transferred to a Tiscali LLU connection. This involves your telephone line being disconnected from a BT DSLAM and re-connected to a Tiscali DSLAM. The voice part is then routed from the BT phone system through that DSLAM to get onto the line.

Looks like a problem there!

The general advice and feeling seems to be that the best thing to do if you are on Tiscali LLU is to migrate away. Unfortunately many ISPs charge for a migration in from LLU. Don't you just love Tiscali?

ISPs you could move to include Newnet who I don't think charge for an LLU migration in, and freeola who only charge �9.99 and a first month cost of �9.99.

He might do better if his basic research and knowledge were better. He has a long way to go to improve on Samknows, Kitz and DSLZone and IIRC several others less well known.

I couldn't even read this latest post and I think I am well acquainted with the subject matter. I would place zero trust in his program. Apart from the fact there are many estimators based on attenuation, plus farina, already.

Hey I dunno if you have a Dynalink modem, but there is a setting there, where you can boost the signal from the modem end - let me know if you do and I will post the settings.

It was pretty cool, I saw some really weird increases to signal strength on a friends connection and I couldn't work it out, but that was what he had done. I am not sure if this is the same with other modems.

I accept that, but those sites didn't spring up fully formed overnight. They all took a great deal of effort and learning.

adslgeek!

Have you seen the "Link to this post" link in the headers. Or the Reply Button on each post.

You have replied to my last two posts with stuff clearly intended for someone else. Your postings would be much more use if they were linked to the post your were replying to.

This applies in both Flat mode, which I think you are using, and Threaded mode which many of us use. Have a look at where your posts appear in threaded mode and you will perhaps understand.

Fair feedback - I am not as good an expert on DSL than many people on the forum, and that was why I was so keen to hear on what feedback there was.

I have been wanting to improve my skills at php through this as a project, and I thought at the same time I might be able to develop my own DSL skills too.

I am certainly not very good at coding, and some of the maths behind the calculations are doing my head in I think that is fair to say! :-)

Feel free to let me know what logic errors were that you saw, as that was the main reason that I was wanting to road test the tool in a real environment.

I have heaps of work to do on this, and the more competent critical feedback is only going to help make it happen (that is meant as a compliment).

I think they at least had the basic technical knowledge to start with, and only had to learn how things worked in practice. Just look at this post for example. What does this mean - "Generally a full install is best and they are far less likely to fail" in the context? Presumably he didn't spot it needed deleting in his copy and paste.

The sentence above it is hardly correct though has a grain in it. The paragraph above that bears little relation to the quote it is addressing.

And he continues to hit the Reply button on the latest post in Flat mode so far as I can see, which doesn't help.

deciBels or Dekabels?

There is a difference ...

10dB = 1 B

10B = 1DB

Sorry, I have been getting a bit strong. I don't disapprove of what you are trying to do.

But please re-read your own post re your knowledge of DSL, PHP, mathematical ability and logic in the tool.

I see no harm in you trying to get the tool working and will happily give feedback on that if I see something that hasn't already been commented on. But maybe you should stop giving actual advice to others until you have got yourself up to a higher standard of knowledge on DSL? Particularly the difference between SNR and SNRM?

The FAQs available on the main site here, the explanations at DSLZone and Kitz and others are very good. Once you have assimilated those, and spotted where at least one of them is out of date, then your own wording of how it works should be fine.

And please work out how to reply to the post you are answering, not just hit Reply on the latest post in the thread .

ok so what i understand so far is that it MAY be caused by my move on to tiscali LLU and that i should report it to talk talk and not F2S.

thanks


martyn

In reply to:

---

what i understand so far is that it MAY be caused by my move on to tiscali LLU and that i should report it to talk talk and not F2S.

---

??????????????

Are you saying your phone line is with Talk Talk? If so then I think the answer is yes.

You could also ask F2S though whether you have been moved to the Tiscali LLU network. If you have, at least we can be fairly sure the problem is associated with the move. Getting that sorted by Openreach if it is a Talk Talk line connecting to you through a Tiscali DSLAM is not something I would fancy.

This particular comment may be a difference in terminology a "Full Install" is what is used to refer to a filter that is installed by the Telco (as apposed to little filters that you install yourself). I had taken the term "runs from a adsl faceplate" to refer to this

I will take a time to adjust to the UK terminology, and the routers that are used there appear to report slightly different results to the standard modems that I am familar with.

It won't happen overnight but I expect to adjust to the new language - and if I get stuck I will send a private message or do more research before posting. Might be best for me to lurk for a while longer, or stick to my old forums. :-)