Is there anything like {Roger Wilco, BattleCom, That nasty MS thing} for Linux?
There’s a new teamspeak linux client out at http://www.teamspeak.org/ A: Yes, But unfortunately you’ll have to convince your windows-using friends to use the same software; none of the above are cross-platform. All the programs here are, though. OpenPhone/ophone (http://www.openphone.org/) Robust Audio Tool, AKA rat (http://www-mice.cs.ucl.ac.uk/multimedia/software/rat/) Speak Freely for windows (http://www.speakfreely.org/), and it’s Unix counterpart (http://www.fourmilab.ch/speakfree/unix/) www.Voxilla.