Content featured in this article may be, in some way, biased toward Ventrilo. This is to be expected, since this is a wiki featuring Ventrilo. (also, some content may not be biased; the Ventrilo Wiki offers little or no way to differentiate between biased and unbiased information)
TeamSpeak is a VOIP speech program designed to be used by teams/clans when playing MMORPG's (i.e. WoW, RuneScape, Guild Wars, etc.). It is a competitor of Ventrilo. It is freeware, but, as specified on its website, "only for non-commercial use".