I would say that the line that runs 1 block from telco has too much
signal strength and it is causing distortion. Running the line through
the PBX probably adds some attenuation. I work for a telco and when we
run lines straight out of our switch we have the same problem and have
to add attenuation.
Michael
>
> I know this isn't a Portmaster problem, but I thought I could throw this
> out and see what you users think.
>
> I have a network dial-in customer using Windows 95 and a USR Speedster 33.6
> Modem. This customer is dialing into a Zoom 33.6 Modem hooked to a PM2e-30.
> The customer has not been able to connect at speeds higher than 9600bps.
> Any baud rate settings higher this within the Modem Properties causes the
> modems not to negotiate at all. With this in mind, I personally removed
> their USR and put in a Generic 33.6 modem which I use myself and know that
> works. This modem reacted the exact same way as the USR. Seeing this, I
> moved the computer to a different line. This new line runs through a PBX
> within the building while the bad line runs direct to the phone company
> switch building 1 block away. Both modems was then able to attach at speed
> above 24400bps. Telling the phone company GTE this, the service technician
> tested the bad line and said that the bad line was testing cleaner than the
> line that worked.
>
> Has anyone had a similar experience?
> How about one like this with GTE?
> Please comment.
>
> Thanx
>
> John Kozitzki
> Information Systems Manager
> B&W Co-op, Incorporated (http://www.bwcoop.com)
> RURAL-NET of Central Michigan (http://www.rural-net.com)
> B&W Farm Center / Case IH (http://www.bwcaseih.com)
> (517)842-3104 ext. 207
> johnk@rural-net.com