It's the golden age of Roll-Your-Own VoIP, with massive savings. But how do you know the status of your VoIP system at any given moment?
One provider, voip.ms, provides an API which makes it easy to construct a GeekTool object that continuously monitors your VoIP status on your desktop and even throw up a Growl notification if there's a problem!
Full instructions and code are presented at http://unvexed.blogspot.com/2011/07/how-to-be-alerted-when-your-voip-goes.html.
