What I need is Skype-like computer to computer call functionality in Asterisk. I want to be able to connect to my Asterisk box over my LAN and go into a conference, then tell a person to go download a SIP or IAX (Which one is better for computer-computer calls?) client, connect to my Asterisk box over the internet and join the conference, and then I and that person can talk.
This may seem a lot more complicated than just using Skype, but I'm willing to deal with that additional complexity in the return of getting rid of a proprietary program, plus then I can always expand it to standard phone-line calling in the future, should I need it.
I'm completely new to Asterisk and litterally have no idea how to get this thing going, so I need some help on this.
Just for completeness, I'm gonna run this thing on OpenBSD

