Ok Black Sheep, thanks for clarifying that. I certainly don't want to get into any arguments over this thread, but I REALLY would like to know if there is anything else I can do to try and get a little more oomph, and a little less attenuation out of my Plusnet line, or at least get it on a par with the newly installed ( Jan 2011 ) O2 line.
Following my adventures yesterday the extension socket is, I think, no longer a part of the equation, at least it has been disconnected from the junction box type 'thingy'. The wiring is currently still in place but disconnected from the circuit.
As I'm not sure whether you have read this thread from the beginning, just a brief outline of the situation.
When I moved to my ground floor flat in 2007, there was a telephone line here which I think had been cut off because of non-payment by the previous owner. I had the line reactivated by BT, and during the first year or so I was happy with their service, but I went with Plusnet as my ISP. From day 1 that line connected at the full 8128/448, with Downstream Attenuation of 32dB, and I was a very happy bunny indeed. Over the course of time, I switched to an ADSL2+ product, having been assured by the ISP that I could expect to see speeds of Upto 14Mbps. This line has never achieved anywhere near that speed, the maximum being around the 12Mbps with Downstream Attenuation of initially something in the region of 35.0 / 35.5 / 36.0 as reported by my Netgear router. I'm fairly sure that this has varied as shown over a period of maybe 2-3 years and I'm not sure if it's particularly significant. I could probably find some recorded figures from the Speedtouch ST516 supplied by Plusnet, if required, but as far as I can recall they are pretty much the same.
However, the line which was '*** installed ***' by O2 (actually 2 BTO engineers came to my flat, installed a Linebox and tested the line) has performed consistently at in excess of 14Mbps, aside from one or maybe two external, and as far as I know completely unauthorised 'construction worker' customisations of the national telephony infrastructure. That is to say, and I'm sure you've seen a few of these in your time, they hit an underground telephone cable or put a spade or something through a cable which they shouldn't have done. I think the BT / ISP term for this type of occurrence is a Major Service Outage.
Note -> above '*** installed ***', an NTE/5 LInebox was fitted, but no new cable was fitted, at least not from the D.P. As a non-expert in the telephony arena, I was kind of expecting some new cabling - was I wrong to expect that ?
Anyway, I digress,.....
What I was hoping to achieve when I started this thread was to seek opinions from those people, like yourself, who frequent this excellent forum and are far more knowledgeable about this subject than I am. It was my view, that the 2 telephone lines which I currently have, and which both originate at my local telephone exchange, somehow arrive at the building in which I live, are connected to what I have since found out is called a Distribution Point, from where a cable enters my flat and provides me with two separate telephones, and two separate broadband services, in an ideal world ought to provide a similar if not identical service in terms of speed. Sadly, that just is not the case. Perhaps, I was wrong about this all along. Oh well, you live and learn.
Anyway, and I didn't set out to achieve this, but the thread does seem to have generated a good exchange of views and has certainly pointed me in the direction of a couple of things to try. So maybe I should wait and see what happens when my ISP 'uncaps' my Upstream speed tomorrow. I'm not expecting it to change much at all, but time will tell.
Thanks for your input
TTFN
toulouse