[JaySingh]

What do you mean it doesn't work? Does it say there is no such CVAR/command, or is it changing but not doing anything? It won't actually change sv_alltalk, so if that's what you're looking for, you won't see it.

Well, what I thought the CVAR would do is when the round ends, it would enable all talk. When a new round starts, it disables all talk. I currently have all talk disabled.

When the round ends, it doesn't enable it.