Xfire: ........................................................................... http://www.xfire.com

Xfire is a freeware instant messaging service targeted at gamers, that also serves as a game server browser and has various other features.

Teamspeak: .............................................................. http://www.teamspeak.com

TeamSpeak is proprietary Voice over IP software that allows users to speak on a chat channel with other users.

mIRC: .......................................................................... http://www.mirc.com

mIRC is an Internet Relay Chat (IRC) client for Microsoft Windows. Although it is a fully functional chat utility, its integrated scripting language makes it extensible and versatile.

XAC: ............................................................................ http://www.xraygaming.com

Xray Gaming Anti-Cheat Program. Must be used for all Enemy Down league matches.

Ventrilo ...................................................................... http://www.ventrilo.com

Ventrilo is proprietary Voice over IP software that allows users to speak on a chat channel with other users.

Mumble ..................................................................... http://mumble.sourceforge.net

Mumble is an open source, low-latency, high quality voice chat software primarily intended for use while gaming.

Mohawk ..................................................................... http://www.mohawkvoice.com

Mohawk version 1.1 is the brand new Voice Over IP built for simplistic operation, and low resource utilization. It is being used by thousands, so why not try it today? Best of all, it's free.