Montgomery College Dungeon and Dragons

So I was thinking insted of us have to play the game and text the whole time we should get some softwear so that way we can use microphones to talk to each other. Does anyone know of any good group chat softwear. I think razer comms has a party chat feature so if some of you want to download it and try to test a 3 or more way chat that would be great. http://www.razerzone.com/comms