Improve connect speed

  • Thread starter Thread starter chocolatemint77581
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Bruce Chambers said:
Ask your local telephone company to improve the quality of their
lines, and move their switching station closer to your house. In
other words, transmission speed over a dial-up connections depends
more heavily on the supporting infrastructure than it does on the
modem's drivers.

The two most important items for transmission are line quality and modem
matching, in that order.

If a voice line is audibly quiet, without any popping, snapping, static
or buzzes, or hearing anohter call's talking. the phone company is not
likely to do anything. However, if there is any audible noise on the
line, the line is not meeting the FCC Quality standards. Or if the
noise happens to for instance be coming from a neighbor's improperly
installed alarm system, electric fence, whatever, the phone company
won't do anything about that, BUT they WILL tell you what the source of
the noise is.
Just do NOT let them into your house, garage or any part of the
building or you'll be charged for a service call.

Ideally, you will get the best speeds and through-put achieved by using
the same brand modems the ISP uses. They're usually happy to share that
information with you and if, as they often do (but they'll use the same
modem chipsets), they have two basic brands, they'll tell you which
access number goes to which brands. You can't really do that with a
winmodem though; you have to know the chip-set used (Rockwell, etc..)
Unfortunately winmodems are notorious for achieving highest speed
connections at more than a mile or so from the Central Office. With
winmodems you'll often get the best throughput by noting the highest
connection speed achieved and then knocking it back one notch in the
speed settings where there will be less distortion on the line and fewer
packets having to be resent. Also don't forget the winmodem is using
the computer's RAM and processor since it doesn't have its own, so that
can add to the problems if running multiple applications. A modem SHOULD
get priority affinity but it's not really a given.

Next would be setting the MRU etc. for optimums matching the buffer
sizes for the speed range chosen.

And after that it's mostly a crap-shoot.

HTH,

Twayne`
 
Andy said:
AT&T is coming out to check my lines.

I complained a couple of years ago about poor line quality and they
did something that increased my
line connects from 45K to 49K.

That's a good one! Call them when the noise is worst if you can, and
always have trouble hearing them over the noise<g>. It matters,
especially if the operator notices you';ve had previous problems! When
they pull up your account everything is right there on the screen in
front of them.
And if it ever gets to the point where you can't break dialtone
(dialtone won't go away when you dial a digit), they have to service it
within 24 hours because you have no 911 availability. Assuming you have
911, that is. I know some places around here still don't have it. We're
VERY rural here.
 
Power limit was set not speed limit by FCC..
Ken Blake said:
Note that although 56K is the maximum speed for a dial-up modem, in
the USA the maximum attainable speed is somewhat less--about 53K--due
to a speed limit set by the FCC.
 
Yes, I agree, you would have to refer to the modem's documentation for that.

That can be as easy as just going to the modem's installation folder within
"C:\Program Files" and looking for a help file - either a dot.hlp, dot.chm or even a
readme.txt file.

There will usually be documentation with a modem you install yourself and any AT
commands specific to it will be listed in that documentation.

Also - there will be a log-file for every modem currently installed on the system -
in the Windows folder - called
"Your long-winded modem name.txt" (obviously yours will be named different to mine).

Every AT command sent and received by the modem should be recorded in this log...

==

Cheers, Tim Meddick, Peckham, London. :-)
 
Twayne said:
That's a good one! Call them when the noise is worst if you can, and
always have trouble hearing them over the noise<g>. It matters,
especially if the operator notices you';ve had previous problems! When
they pull up your account everything is right there on the screen in
front of them.

Getting 45K means that the noise probably isn't even perceptible.
 
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