> We currently use a Livingston Portmaster 2e with 10 external Courier
> V.everything 56K X2 modems running off the box.
> Our firmware version is 3.5.
>
> We can not get the modems to connect at any higher than 24000bps.
>
> I was thinking that there were a number of reasons why:
> Upgrade firmware in the PM2e - 3.5 to 3.7.2
> Upgrade the modem firmware (if possible)
> Maybe there is a telco issue - the lines will not allow us to connect at
> 56K because there are two many switches before it reaches the final
> destination (thereby disabling X2). I had this problem before with my ISP.
> The local Bell was able to check my line. They said they couldn't do
> anything - but mysteriously - a week or so after the call - I was able to
> connect to my ISP at higher speeds.
>
> My reasons are only speculative. Can anyone tell me what I really need to
> do to allow our users to connect at higher speeds (closer to 56K).
You CANNOT use standalone modems fed by POTS lines to serve 56K. You have
to use something where the phone service is delivered digitally,
Channelized T-1 or E-1 or PRI or individual BRI's that have been combined
into one of the above. The PM-3 and PM-4 products are the Lucent way to
provide this service. Something like a Compaq 4000 can be configured to
do V.90 with a PM-2 if the delivery medium is CT-1 or PRI.
The best you could hope for with your setup is 33.6 or maybe even only
28.8. The fact that you are not even getting that implies line quality
issues as well.
Doug Ingraham You can judge the quality of your life by how often
Rapid City, SD you notice the enjoyment of the little things.
USA
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