Nowadays, many companies have a head quarter in a place, and branches in other place. They might be in different countries, different districts,different streets, even some in different floors or different offices. All kinds of companies may need a video conference system to improve their working efficiency. Thus, They can hold a meeting in any time without no consideration of distance, weather, busy business. It can helps enterprises save the time and money, and also the labor, doing the analysis and come out a decision quickly and effectively.