Digium continues to do the right things to make open source software attractive to small business. Today's news story is courtesy of VoIP Planet, Skype Meets Asterisk.

Skype, of course, is a proprietary and sometimes controversial system but there's no denying that it's popular.

Cost conscious business users who lack VoIP expertise and are unwilling to pay their ISP for help (they should) may be able to achieve one of the great oft promised cost benefits of VoIP: free interoffice calls.