So what's the difference between FreeSWITCH and FusionPBX?
I want to say something about sharing VOIP setups: Security, security, security. Paranoia. Danger!
VOIP is a favorite target of pingsweepers and portscanners for good reason: VOIP connections are monetarily exploitable. All you need to run a "free unlimited outbound US calling" telco, as foreigners seem so fond of using, is to discover one unguarded SIP extension's password, that's all. Very few people actually limit how many times an extension can be registered concurrently, let alone fully implement ACLs.
Default password security on FreeSwitch is better than, say, asterisk, but please be careful to remove all current/valid SIP account credentials from anything you post, share, or whatever with whoever.
You may think I'm being over the top, but ask your SIP provider how often they get attacked/probed.
That said, I'm totally down with this conversation and I think we should do some meetings on setting up free software PBXes!
In person is good for this stuff, so a meeting may be in order.