Once you have the SL 6.6 image running under VirtualBox, just begin the tutorial at the step to install Incredible PBX, and you'll be good to go. Using this image on the front end speeds up new installs by 50% to roughly 20 minutes. That's comparable to a new cloud-based install on Digital Ocean.
Here's the quick-and-dirty VirtualBox tutorial for those that have never tried it. For these new builds, you still will need to run the Incredible PBX installer so ignore that language below...
We've updated the original article to clarify the dialing prefixes associated with all of the default trunks. Just dial the prefix + any 10-digit number to place a call (once you've set up the trunk with your credentials).
Here is the complete list of dialing prefixes and the trunks to which they are associated:
Ha! You are using the single-digit-prefix-to-select-trunk mojo that I've been using for years on all of my PIAF boxes. Pulling up my handy cheat-sheet (need it; can't remember otherwise!), I'm doing this: