Digital Terminal Servers/Network Access Servers.

Richard Lachance ( )
Wed, 04 Mar 1998 23:58:22 -0500

We'll soon be replacing our analog terminal servers/modems with digital

We've looked at the Livingston PM3's, but I 'm not too hot on its
limitations of 2 PRI's/T-1's. Is there a PM3 model that can scale better?

We somewhat looked at USR's Total Controls, but their product line is hard
to understand. From what we understand, we can't handle both ISDN & modem
calls with the same equipment, so we have to decide ahead of time how many
concurrent ISDN calls to support and how many concurrent modems. We've
also heard that their recent OS upgrade, which is no longer licensed from
Livingston, is full of "idiosyncracies". (Read that as "bugs" or
"ill-implemented features".)

We haven't seriously looked at any other manufacturers. Does anyone have
comments on the above statements or recommendation of other brands?



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