teamspeak and ventrilo are much more clear than the in game vox. you have a lot more control over comms than in game vox too, talking outside of ah, comms for other games without built in vox, even guest access if you want.
Yes, TS ( Team Speak ) & ventrilo does have some good points about it
but there can be a downside as well
people experiencing IRQ conflicts
experiencing BSOD's
PC using to many rescources there for affecting how Aces High runs on a player's system
it is neat, I have even used both before myself, but for some with lower end computers, I would be cautious as to using it and having Aces high freeze up on you or boot you to desktop
or the same happening with TS2 or TS3
and using another plugin ( the Overlay ) is just adding more resources ( Strain ) to a players system overall, whether it uses up some CPU, Ram, etc.....
just a word of caution, I am not saying whether people should use it or not
hope this helps
TC