[Kamailio-Users] This has probably been asked a thousand times before...

Regardless, despite my Googlage, I can't seem to find what I am looking for. I've looked at the Wiki and the documentation. While I do have a programming background, I still am having a hard time grasping some of these tutorials. Many of them seem very specific and not at all relevant to what I am trying to do. I feel like I'm left without a good starting point. My goal is to have Kamailio setup as an ITSP would. That is, I have three sipxecs PBX systems here, and rather than have each one configured with umpteen SIP trunks that I'll need to manage, I want to have (for the time being) just one -- that one would be my personal Kamailio server. When a user makes a call, it first goes to my Kamailio server which then distribute the calls to my ITSPs (like Bandwidth.com, voip.ms, etc). I want the ACLs to be setup based on IP addresses and not user registrations. I want nothing to do with the media or RTP streams. First step would be termination (outbound). The obvious next step would be setting it up for origination (inbound). I've downloaded and installed the SIREMIS web UI for OpenSER 1.4.x, but as I said my lack of understanding of the terminology's context prohibits me from really exploring anything. Some areas look familiar, others seem redundant, etc. The reason I started with the web UI was because it's obviously easier and it also produces output that is syntactically correct for my own examination and learning purposes. What would the appropriate terminology for this kind of setup be? Can anyone point out a Wiki article which I may have missed? To me, this seems like the most basic of basic configurations and a seemingly obvious launching point for anyone getting into the software... Thanks! -- Robert