Well, its a small program that opens a window and lists the servers you add by address. Once you join and register by simply typing a name and your own made up password, you can join the channels where you see all your friends names. There's a circle by everyones name that lights up when they speak so u know who's talking. To talk yourself you setup the key controls with a Push to Talk button or Voice Level Detection and speak. It's like being on the phone with peeps with a half second lag.
Pretty cool stuff. We have multiple channels and when we go into battle we can move to battle channels by admins or by using hotkeys.