I have googled this up and down the internet, read the manual 5x over, I played once about a month ago and could hear the guys talking even though I did not have a head set. Don't know how that happened. Got a headset last night and got voice coming through my headset once and couldn't talk back.  I have not found a simple tutorial that is not several pages long and actually works!!Im running the latest BF2 expansion packs with the latest windows vista os. This cannot be that complicated. Thanks.

Does your mic work?

It might be muted or disabled in your sound utility.