(Of course we'll jump back onto TS FOLK while playing ARMA.)
http://www.ventrilo.com the VOIP program
Server Info
Ip address - calcium.typefrag.com
Port - 38580
No Password
You can also use this little program Gadget in Win7 to see if we are on the Ventrilo Server.
What the gadget looks like.

Download link
http://wkateam.com/geem/ventrilo.gadget.zip
How to Install:
Extract into the Windows Sidebar Gadgets directory. Example "C:\Program Files\Windows Sidebar\ Gadgets"
Now right click your Dekstop and click on "Gadgets".
Look for "Ventrilo" and double click it and thats it...