This is a guide written by me, no copy. Please see how to install Teamspeak.
1.Firstly download Teamspeak Server teamspeak.com - Please don't download the Client!
2. Extract The Compressed files to your desktop.
Run ts3server_win32.exe and wait a few minutes. It would be setting it up.
3.Please copy down the admin infomation and the passkey.
4.Config your router to open those ports
Default voice port (UDP): 9987
Default filetransfer port (TCP): 30033
Default serverquery port (TCP): 10011
5.Type in localhost:9987
Your admin username and password.
6. And you should be done setting up your own private server. If you have a home router(NAT) users will not be able to connect to your teamspeak server.
More infomation and advance setup at teamspeak website,
Hope this helps!