This runs on Linux any one want to make a windows version?)
http://panteltje.com/panteltje/cb/

xpvox

Now it can also play sound files, and you can set for each file if it is
played as for example a roger beep, or lead-in (station identification?)

Also added a way to make echo in case your set does not have it.

In fact I have found some nice beep wave files on the windows disk,
animals... sound of thunder.. good music too of cause ..

The other feature is that you can use the mouse as transmit button,
this is nice while using the headset and PC.