I created soem documentation on using Asterisk with Fedora Talk based on my experience with getting it working this past weekend. If any of you are interested in reviewing it, you can see it at: https://fedoraproject.org/wiki/User:Bruno/Using_Asterisk_with_Fedora_Talk

Assuming you guys don't have a problem with it, I'll see if the docs people want to turn it into real (instead of draft) documentation.