As a matter of fact, here is a Tox session between two clients: uTox and ratox: http://raw.z3bra.org/vid/tox-session.mp4

uTox is a light client written in C, really easy to use, and ratox is a fifo based client (kinda like ii, but for tox). I didn't have the occasion to try out tox live, so I'm not well organised when using ratox. that's why you can see windows everywhere :P (but it's demostrative enough for this presentation).

Side notes about the video:

• you can't hear it, but the calls are working
  
• I make use of rat-play and rat-record which are just aliases to aplay/arecord
  
• I tried the ffmpeg command "live" to see what would happen. it failed. but it can obviously be done with the good flags
  
• I'm not sure how those two would handle group calls. Why not try it live ?
  

I find tox to be a nice alternative to VoIP softwares, and it would definitely be nice to promote it by creating our podcasts with it. Who's with me ?

EDIT: found this page about features in clients... It seems that none of them actually support group audio at the moment...