My dirty walk-through to setting up an external modem in Linux using wvdial to dial into an ISP connection. I had some trouble finding a single place with a good write-up for doing such a task when I was setting up a Linux box for someone that had previously been using Windows and a little OS X. Finding dialing info, modem configuration, or slight troubleshooting, alone wasn't too difficult, but finding them in one place in a concise manner was. So I have attempted to compile what I have found, my tweaks and adjustments, and other hints that enabled me to setup a Linux box to use a dial up connection via external modem.