🚀 go-pugleaf

On Thu, 12 Nov 1998 16:53:58 +0000, peter@cara.demon.co.uk (Peter
Ceresole) wrote:

>In article <364AFE92.392D7A44@telapex.com>,
>Paul Holloway <pauldh@telapex.com> wrote:
>
>>56K technology is dependant on the fact that you only have
>>one analog-to-digital conversion between you and your ISP.  V.34 isn't
>>impaired by the same things the 56k protocols.
>
>Not only that; the fact that Dave reports that he is only getting 31,2 with
>his V34 Winmodem indicates that there is something dodgy about either his
>set-up or (more likely) the line between him and his ISP. Not at all good
>news when trying to get a 56k connection. 

Not necessarily!

I could only get 31.2 to Netcom but 33.6 to Demon, when I upgraded I
was averaging 48000 to Netcom but only 46667 to Demon using the same
telcos. Using a different telco I'm averaging 49333 to Demon.

The protocols seem to use the line very differently, my line fades out
towards the top end and this seems to have much less effect on V90.
OTOH here in the UK (this is crossposted a lot!) BT (one of the
telcos) uses a gadget known as a DACS which allows two phone "lines"
over one copper pair and this usually limits connection speed to 26.4
or so. Does your telco do this?

It's still all a bit of a crapshoot, there are one or two Rockwell
chip modems which don't like negotiating with (Rockwell chip) Ascends,
for example, when mine did that half the time it would only pull 21.6,
but it works fine with 3Coms, go figure.

It's going to take firmware upgrades on both your and the ISPs' end
probably before all the other problems are ironed out and you can be
*certain* that any failures are down to the quality of the wet string
your telcos use, in the case of the original poster, and Dave, it
looks at the moment very much like a line quality problem, different
modems are getting slightly more or less performance out of it but the
potential just ain't there. :(