Chris,
Start at Vicibox.com
Download the .iso and install it on a VMware or vSphere server to practice with a single agent and survey the system (no cost, not even hardware! LOL). I recommend the standard install, but the preload has been known to be simpler for some people, try them both it's free!
Install it SEVERAL TIMES to get used to the process. Those who install on a hardware machine are often afraid to start over and then get "stuck" with irregular systems and have fear of reinstalling. Seriously, when your kid's laptop gets infected ... do you fear the reinstall? Nope. Trust me when I say installing it 5 or 6 times will make your future brighter if you want to maintain the system yourself. LOL
Pick a random low-per-minute price carrier that has NO monthly fee (pay per minute and you'll be using very little in the way of minutes while testing, so once again the cost isn't there).
Alternately, you could lease a machine from The Vicidial Group and skip the install and carrier choice entirely. Vicihost.com will resolve both issues if you prefer. (FYI: we at poundteam also host, but we don't sell minutes.)
It will install the OS and everything else necessary. There is a PDF for installation on the Vicibox.com site. After that installation is done use the Manager's Manual available at EFLO.net to configure it.
At that point, discussion of failover, recordings, etc will have much more meaning. And Vicidial is the solution for all dialer questions. There isn't another one in the open source world and I don't know of one more powerful or with more features even in the proprietary market. Unless they are running Vicidial underneath, and then they always have Less features, not more. LOL
When you're installing, and have a problem, bring us the manual page/line number and what went wrong. Copy/paste from the screen if possible. Also be sure to give us the details related to what went wrong.
Learn to use Putty (from chiark). That is how you'll be managing the server as a technician.
We also offer a three hour training course. It's not as comprehensive as the on-site training from The Vicidial Group, but it is designed to take you from "pretty new server, no idea how to use it" to "dialing! one agent, one list, one campaign, ... but Dialing, Dangit!"
Happy Hunting
Also: We've been toying with the idea of allowing access to a Virtual Vicidial for new users for $25 so they can "audit the course" as it were without going through all the Hassle (full function ... but only capable of a single user, great for testing and seeing all the menus). If you're interested, we could fire that up for you!