Even if it was possible, I personally wouldnt use it. Would you really like to have some of the trolls in this community on your TS channel saying bullshit the whole time?
Its ok with a few clanmates, but with like 50 people??? If youve ever been to a strat battle youll see that even with a clear leadership and priority speaker and so on, it can become chaotic. So imagine with pubs when two people start go left, go right, go left, go right, each shouting more than the previous to make him/her/itself heard
If I was forced to use it, I would just mute it anyway most of the time.