VLAN "Hopping" Tool

Here is an article about a "VLAN Hopping Tool". The tool and technique is a way to configure a PC/laptop to communicate on a voice VLAN. This is something we commonly do, when testing an enterprise VoIP deployment. It is good (I think) to see the technique documented:

http://www.securityfocus.com/infocus/1892?ref=rss

Here is a link to the actual software:

http://voiphopper.sourceforge.net/