Video teleconferencing (VTU) services have facilitated long distance communication among friends and businesses.Over the years, the need for these conferencing services has increased and the technology used to run this service is also improving.The popularity of this service can be mainly attributed to businesses that are using it to conduct offshore business meetings among employees and clients.There are different types of conferencing services to choose from.Businesses can choose one that suits their requirements best. In doing so,it is important to understand the technology used in the services. 

Basically, there are two types of video teleconferencing systems.They are dedicated systems and desktop systems.The difference between these two is in the components they are made up of. Generally, there are several components in this system.They are:
Video camera or web cam- required for getting visual inputs A computer monitor or television- required to get the television output. Audio aids. Lan or internet connection for data transfer.In dedicated systems, all these components are integrated in a single piece of equipment. It contains all the electrical interfaces, audio aids, and an image projector as well.There are many types of dedicated systems including large, small and individual VTUs.They are classified based on portability and cost.

The second type of VTU is called desktop VTU.By using desktop systems, video conferences can be carried out using dispersed personal computers.They are like add-ons to a personal computer.

One should choose that video teleconferencing device that suits their budget and business needs best.

By: Vikas S