Donald Casson wrote:
>
> I run a dial in server using pppd and mgetty. When i dial in from home i
> only can see 26400 as the speed it connects at. But when i use a terminal
> emmulater it connects at 33600 (which it is ). The modems used are 56700.
> Is there any way increasing this speed without putting digital lines in. Or
> at least showing a higher speed. Any help would be much apprecieted.
>
> donald
>
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donald, hi,
you should be able to get ~30K with an analogue modem, even ~34K _if_
the quality of the line is good (check _your_ end of the phone line as
well as the PSTN provider; i.e. any extension leads, other equipment
etc. you have "on" the line; the example below only ever gets ~27K
"upload" speed because the machine sits far away from the PSTN socket
and needs a wire extension. when i plug it directly into the wall it
connects at ~33K). try connecting to different numbers (trial ISPs?) so
you can see what the "average" is for each end (home and office).
also, here in britain i've heard of cable phone providers multiplexing
several numbers onto one line, thus lowering the bandwidth. for example,
a friend of mine runs a business from home, so he initially had just the
one line. when he started the business, he asked for another. then when
the business grew, he asked for 2 more. only trouble is, when he
connected a modem to one of the lines, he was only _ever_ able to get
~14K on it. turns out, instead of laying more cable for the extra line,
the cable company just split his existing cable bandwidth to provide
more
lines as over here they're only required to guarantee enough bandwidth
for voice (~9K i think)! whichever, you'll never get 56K from an
"analogue" modem unless you put in digital equipment (the 56K is one
sided, the upstream connection has to be digital).
but, by using it's AT commands, you can get your modem to display a
"more useful" connection statistic like:
"CONNECT 115200/V90/LAPM/V42bis/26400:TX/46667:RX"
look it up in your modem's manual (if you still have it ;) you might be
able to get it online if you don't), but on my Pace 56 Voice ISA the
command is AT\V1.
hope this is of some (any?) help,
--
:D_ima
Dima Nemchenko
[EMAIL PROTECTED]
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