Large room video conferencing traditionally has been a tool that has been restricted to enterprises due to the need for compatible supporting infrastructure at each conference room endpoint, often necessitating single-vendor solutions which until recently, could run up into the many thousands of dollars.
In the past two years there have been a number of products released to the market to try to address SMBs in order to bring that enterprise-like video conferencing experience using open protocols, standards and off-the-shelf software such as Skype, Google Hangouts and WebEx.