| Video teleconferencing (VTU) services have facilitated | | | | - Video camera or web cam- required for getting |
| long distance communication among friends and | | | | visual inputs |
| businesses.Over the years, the need for these | | | | - A computer monitor or television- required to get the |
| conferencing services has increased and the | | | | television output. |
| technology used to run this service is also | | | | - Audio aids. |
| improving.The popularity of this service can be mainly | | | | - Lan or internet connection for data transfer. In |
| attributed to businesses that are using it to conduct | | | | dedicated systems, all these components are |
| offshore business meetings among employees and | | | | integrated in a single piece of equipment. It contains all |
| clients.There are different types of conferencing | | | | the electrical interfaces, audio aids, and an image |
| services to choose from.Businesses can choose one | | | | projector as well.There are many types of dedicated |
| that suits their requirements best. In doing so,it is | | | | systems including large, small and individual VTUs.They |
| important to understand the technology used in the | | | | are classified based on portability and cost. |
| services. | | | | The second type of VTU is called desktop VTU.By |
| Basically, there are two types of video | | | | using desktop systems, video conferences can be |
| teleconferencing systems.They are dedicated | | | | carried out using dispersed personal computers.They |
| systems and desktop systems.The difference | | | | are like add-ons to a personal computer. |
| between these two is in the components they are | | | | One should choose that video teleconferencing device |
| made up of. Generally, there are several components | | | | that suits their budget and business needs best. |
| in this system.They are: | | | | |