Bt Adsl

[philly]

Hi guys need some info if poss, bt due to upgrade my telephone exchange in feb have idsn into the house but after doing telephone number check it say that i can`t have it to faraway but if i do it on the post-code they can do it but the connection would be 512/256 up/down and it would depend on a line test. i was reading some where that if you could get idsn you could get adsl but not so sure now, i would happy if i could get adsl even if it was a slower speedlike 256/256 or 256/128 but i don`t know if thats possible any help please.

[Steve]

They like to play cautious - they just base the connectability on how far you are from the exchange.

ISDN and ADSL are totally different technologies so while there may be calcuable distance limits comparable to the two, I wouldn't rely on having ISDN as being an indicator that you can get ADSL.

However, it is unlikely that they won't be able to sort you out with something - they do it so that they're covered if you don't necessarily get 512/256.

[didgit]

double check with BT, I had a mate who's postcode said yes he could have adsl and telephone number said no for adsl on BT checker but he tried his neighbour's tel number (who's further away telephone line wise) and it said he could have adsl, he has since then had a dsl line install and I believe works fine.

[shamus21]

It seems BT are doing a lot of up grades this February, Can any anybody whos at the extrems of the range tell us of there experience was after having had ADSL installed. Was it reliable , what sort speed did you get Thanks.

[philly]

yes didgit i went round to my mates whos just around the back from me, gardens almost back on to eachother his house is is only about 250 ft away we did a check on his telephone number and the BT website said it was ok and then it went to the sign up link.
I sure this company don`t know what its doing or it needs to up grade its wires or something.

[didgit]

is your neighbour closer to the telephone post or are you ? like I said call BT and see what they say...

[Space Cowboy]

IIRC the range will be the same. If you can't get ISDN (max 7/8km?), you certainly won't be able to get ADSL.

It depends not on how far from the exchange you are, but how far the wires travel, and where the trunk lines are located.

Apparantly if I'd be across the road, I wouldn't have been able to get it due to it being nearer 8km and not the 1.4km I have.

That said, give them a slap. There's an engineers number to check line length somewhere - but I can't remember it.

[acidrainy]

Ranges:
ADSL = 3.5km
RADSL = 6km

All 512kbit packages sold are RADSL regardless of your distance from the exchange.
RADSL, or rate-adaptive asymmetric digital subscriber line, will ensure that you always get your ~512kbit downstream but depending on line quality can sacrifice your upstream a little.

If your line quality is not great you should still get your max download but your upload speed can be slower than expected.

Getting RADSL could be tricky for yourself, it may well work but because BT's initial test has not shown favourable results you don't really have much comeback if it doesn't.
Additionally, you would either have to have the RADSL installed on another line or have your ISDN line reconverted back to a PSTN line then upgraded to an RADSL line.

Where I work (Tech support for an ADSL isp) I see allot of people in your boat. A common solution is to get another line installed. In 90% of cases this additional line shows up perfectly on the BT availability test and ADSL installs without a glitch. This being the case, most people then cancel and disconnect their ISDN lines and live happily ever after

[shamus21]

Ranges:
ADSL = 3.5km
RADSL = 6km

All 512kbit packages sold are RADSL regardless of your distance from the exchange.
RADSL, or rate-adaptive asymmetric digital subscriber line, will ensure that you always get your ~512kbit downstream but depending on line quality can sacrifice your upstream a little.

If your line quality is not great you should still get your max download but your upload speed can be slower than expected.

Getting RADSL could be tricky for yourself, it may well work but because BT's initial test has not shown favourable results you don't really have much comeback if it doesn't.
Additionally, you would either have to have the RADSL installed on another line or have your ISDN line reconverted back to a PSTN line then upgraded to an RADSL line.

Where I work (Tech support for an ADSL isp) I see allot of people in your boat. A common solution is to get another line installed. In 90% of cases this additional line shows up perfectly on the BT availability test and ADSL installs without a glitch. This being the case, most people then cancel and disconnect their ISDN lines and live happily ever after

Hi acidrainy
Is the range for RADSL 6km spot on or can you get a little bit more or is it down to line quality. why i say this is that when i had my own IDSN installed they had to come out to the house to do a check , i aslo had two pstn lines and only one would pass for ISDN use .

[Speedo]

philly - not by any chance on the Marton exchange are you ? .

[acidrainy]

Hi acidrainy
Is the range for RADSL 6km spot on or can you get a little bit more or is it down to line quality. why i say this is that when i had my own IDSN installed they had to come out to the house to do a check , i aslo had two pstn lines and only one would pass for ISDN use .

Truly, its down to line quality, you may be able to push a little over the 6km reach. But keep in mind that if things go wrong you may be a little out-on-a-limb.

Essentially, your best listening to your engineer... Make him a cup of tea, twist his arm etc'. You may be in luck!

[acidrainy]

As an additional note, RADSL's maximum noise level is 60dB.
This is what translates into roughly 6km...

[shamus21]

As an additional note, RADSL's maximum noise level is 60dB.
This is what translates into roughly 6km...

Hi Acidrainy not sure but this may be good news when they check my line for noise on homehighway ISDN it came out at 44db. THere is hope yet just got to get BT to have a look at this it took em a long time to come around to the idea that i could have isdn that could work.

[EMPI]

EDIT: posted wrong place

[acidrainy]

Looks like you may be in luck then!

The 3.5km limit is reflected by a 41dB noise level... Sadly your over this for ADSL but you are well under for RADSL!

[Richie]

ADSL is NOT determined by distance and there is no conversion from distance to attenuation levels possible.... A 1km length of cable can have a much higher dB level than a 5km piece of cable..... Number of joints, physical conditions e.g. undergorund wires sitting in water, aluminium sections of line etc etc all have an effect on attenuation of the line.

Also, a line is not run direct from the exchange to the house. It may go from the exchange up a seperate street and then down yours before it reaches your house which all adds problems.