Essential communication program between friends in the game, it can also be used for any other game online.
Simply connect the IP of the admin who created the room, to register or even enter as guest, and have great fun!
Here is the link to download this great program, just choose the mirror and DOWN!
Link to download: http://www.teamspeak.com/?page=downloads
FAQ: http://www.teamspeak.com/?page=faq
This program is very easy to use, any doubt just look for a tutorial anywhere on the Internet.