A friend of mine has both VT and TS servers loaded up on his machine for Guild Wars Alliance people. It's not that hard, you just need to download and install the server side program from the VT/TS webside and configure it. The instructions on the specifics are documented on the respective website. I thought about installing the voice server myself but never have gotten around to it yet. Just remember that if you use a router you may have to open up some ports to allow the voice traffic. If you have any specific questions or issues about the install or configuration just ask, if on the small chance I can't answer the question myself I'll get my friend on the phone.