- last post: 01.01.0001 12:00 AM PDT
Halo was released before Xbox Live, thus, there is no voice chatting in it. When Halo came for the PC, VOIP wasn't that popular back then, so Gearbox didn't bother adding it.
But you could always use third-party VOIP such as Xfire or TeamSpeak which allow you to voice chat through a program in the background with other players.