> Yes I tried from home and can only get 33600. Same modem, same laptop etc
> from the office on Telewest gets 50k+
Hmm, this does seem to support your theory regarding BT muxing you.
Having dealt with BT Carrier Services and knowing how SS7 interconnects
work, I still think it is unlikely that this is occuring at the point of
interconnect (although I wouldn't completely dismiss it).
Get Telewest to check any switches that calls have to pass through to get
to your PRI and make sure that they are passing the full 64kbps data
channel through. I know that there are switches in the Telewest network
that don't do ISDN in quite the same way as everyone else (from bitter
experience), so it wouldn't surprise me if your were being muxed at some
point in the telewest network.
If you don't have any joy with your own account manager or the normal
faults desk, you should try Telewest Carrier Services (who now have two
account managers who specialise in ISPs now apparently).
> No they are on different exchanges 01454 01453 and 01179
> Some are rural. In particular user A who gets very poor speeds is miles out
> in the sticks of the Gloucestershire countryside.
Rural customers will get worse connections because their beeps and
squeeks have to pass over more miles of copper.
> The customers I listed in the logs are only the ones I know about. I might
> start asking other users which telco they use and see if there is a
> definate pattern
If you want to build a more complete picture without hassling your
customers, you can use your RADIUS account logs along with the Oftel
number database:
http://www.oftel.gov.uk/numbers/codelist.zip
The sabc_de.txt files has a complete breakdown of which Licenced Operators
have which numbers.
Let me know how you get on.
-- Richard Morrell richard@ednet.co.uk System Administrator - edNET: Internet Access for Edinburgh - www.ednet.co.uk- To unsubscribe, email 'majordomo@livingston.com' with 'unsubscribe portmaster-users' in the body of the message. Searchable list archive: <URL:http://www.livingston.com/Tech/archive/>