Use of the Voice Chat is strictly voluntary. You don't have to use it if you wish. It will have some pretty nice features though that people may just enjoy. Once we have more information on the system itself, we will be putting up information on it.
The choice to use or not use this new feature falls strictly to each individual and what works best for them. If a group chooses to force you to join the Voice Chat, you can choose not to join them. I'm sure there will be others who will decide that they would rather forego the use of the system that would be happy to group with you.
The system still needs to be tested before it's even implemented and while we understand the concerns people may have, it's a bit early for anyone to claim that this feature is a bad idea even in concept.
voila bientot on tournera en voice mod dans wow. cf :
http://forums.worldofwarcraft.com/thread.html?topicId=112402291&pageNo=2&sid=1#27