Found this on an older site that somehow didn't make it to the new site. Very helpful!
AllStar Asterisk is a HAM radio repeater controller and linking system based on the Asterisk VOIP platform. I'll be running mine on a Raspberry Pi3. After some experimenting with DIAL (Debian Install Allstar Link) and other versions out there, I've opted to go with RPi2-3 Image Version 1.5rc2 from https://hamvoip.org/
Saving some of my settings for future reference: