For the last 10 years we have had some Tandberg video conferencing units spread across our WAN. To make a long story short we had to work with another entity to allow access into those units with H.323. Calls from public networks have never worked to those devices with private IP's. Over the summer, my coworker and I built an * VOIP system for one of our high schools. The need came up for another public school division to call us, and we said sure, we can do it with *. The next day, the other school division called in just fine, no big deal. This may not seem like a big deal, but this a huge star for Asterisk in our school system. Shane