Console/Access Server

[Evan Sayer]

Hello-
I am looking for a rackmount server that will take care of both 
incoming ISDN data calls and can connect my serial consoles to my LAN 
via telnet or ssh.  Basically I need a access/console server with 2 or 
more ISDN BRI ports with modems, 6 or more async serial ports for 
serial consoles, and ethernet.  I want to be able to accept two calls 
on each ISDN line at 64k/56k a piece with PPP and allocate dynamic IPs 
per call, and I want to connect each of my server's serial consoles to 
a serial port and be able to telnet to it with its specific TCP/IP port 
or a using a rotary.  I've been looking at several servers so far- 
Livingston Portmaster 3 and Cisco 2503, but I am really not sure if 
they will do what I want (sort of new to this stuff).  I am probably 
looking at buying used hardware, and I don't want to spend more than 
$250 (ebay perhaps).  Any help is greatly appreciated.