Hello NPRI, [ evL ] here...
I am telling ya, don't mess around, go get a Zoom 3049 56K V.92 External Modem.
You will have a big smile once you plug this thing into your serial port. I currently run one on an old Compaq Proliant 800 server running Debian Linux and it works great.
Read this ::
The Zoom/Modem V.92 External Model 3049 is a high performance 56K fax modem that plugs into the serial port of a computer using Windows, Macintosh, LINUX or UNIX operating system. The Model 3049 outperforms earlier V.90 modems by implementing both V.92 and V.44 standard technology. The V.92 standard supports modem-on-hold, Quick Connect and faster upload speeds. The enhanced V.44 compression standard delivers higher speed WEB browsing. Both standards combine for an improved Internet user experience.
You can find out more at this URL ::
http://www.zoom.com/products/dial_up...al_serial.html
The 3049 modem will be the first on the page, it is black.
Ok buddy, I hope this helps, go get this modem and watch your worries disapear!