Right, but I was thinking those were clients. So, there doesn't have to be a server running a software package that will allow for outside connections, like jabberd for chatting?
From Gnomemeeting, just type in the IP address of the netmeeting client, and viola.
You can also use a h.323 gateway like gnugk, that will act as a call manager for VoIP traffic. this way all clients connect to this gatekeeper, and then they can just type "bill" to ring Bill, etc.
Either way works great.
