Hardware video conference system, also known as video teleconference system, is the earliest form of video conference. Hardware video conference needs to run on a dedicated line, use a dedicated remote control terminal, and set up a dedicated conference room (configuration of large-size TV, conference room microphone And speaker equipment) Conferences are held by hardware MCUs (servers). Videoconferencing used by users in the above industries is often in this form. The hardware video conference is characterized by good audio and video effects, simple operation, and a single function. Due to the need for dedicated lines and special equipment, it is expensive. Representatives of such video conferences include Polycom, ZTE, Huawei, Kodak, and 3gmeeting.
The network video conference system is a form of video conference that has been newly developed in recent years. It is generally used on the Internet, and video conference terminals and MCU functions are implemented by installing software on a PC. Compared with hardware video conferences, software video conference systems have the features of cheap price, rich functions, and convenient upgrade. Because software video conference runs on the PC, the PC is unstable and the operation is complicated. There are certain technical requirements for the personnel who use the video conference. Due to the insurability of Internet bandwidth, video and video conferencing often suffer from audio and video delays, jitter, and network disconnection. Representatives of such video conferences include AVCON, CNKaran, 3gmeeting, V2 and Sequoia.
With the development of videoconferencing technology, hardware videoconferencing systems have introduced high-definition and telepresence videoconferencing, and have adopted 720P and 1080P high-definition video technologies and virtual conference room technologies. The image quality and user experience have been significantly improved. HD videoconferencing The network bandwidth requirement is 2-4 times more than the original video conference. In addition to the cost of purchasing conference equipment, bandwidth upgrade is also necessary. Network video conferencing also has video conferencing rental services. Users do not need to purchase additional servers, software, and bandwidth to pay for a certain service fee to the manufacturer. Video conferencing can be conducted through the software terminal or Web Flash. Because it runs on the Internet, service quality is practical. There is a large dependence on network conditions.
2. Mistakes in the current selection of video conferences The selection and deployment of video conferences is a professional task. The purpose of the construction is to meet the needs of the work and serve the daily business. Although many manufacturers have claimed that their products can meet all the needs of users, but after the actual deployment found that many places can not meet the requirements. The following list of common misunderstandings.
Non-HD does not buy (not bad money): This type of user is not bad money users, funding is not a problem, the key is to have the best results. As mentioned above, in addition to the equipment price, high-definition conferences have enough bandwidth to be the most important guarantee for high-definition conferences. If the user's branches do not have dedicated lines or the dedicated line bandwidth does not meet the conditions for running HD conferences, the purchased HD conferences will be difficult to use. Or just use as a SD device. For example, the bandwidth of a 10-point 720P HD conference requires at least 2M dedicated lines at all branches.
The cheaper the better (for bad money): Many users who purchase online videoconferencing often use price and features as indicators, arguing that the cheaper the price, the richer the better. The biggest advantage of online video conferencing is that it is inexpensive and suitable for the Internet environment, but the use of network video conferencing requires certain technical requirements. If there is no professional cooperation and network bandwidth protection, it is difficult to have good results. Especially in the conference room at the headquarters level, when there are enough participants at the meeting, the software terminal is difficult to meet the requirements.
One can not be less (to send people): When purchasing a video conference, they only noticed the scene of communicating within the unit, and ignored the problems of leaders and business people who were on business trips to participate in the meeting. All the people must be in the meeting room during the meeting, which leads to the situation in which the staff cannot attend the meeting in time and cannot communicate and communicate in a timely manner.
3. Suggestions for purchasing a video conference When purchasing a video conference system, you can consider the actual work needs of the organization, the financial budget, and the network conditions of each branch. Large conference rooms use high-definition conference equipment, medium-sized conference rooms use standard-definition conference equipment, and desktop users use software terminals. Out-of-office users can use software terminals, 3G mobile phones, or telephones to participate in video conferences. At the same time, consideration should be given to the optionalness of system expansion and the convenience of system upgrades. Video conferencing products that support international standard specifications should be adopted as far as possible so as to avoid kidnapping by private vendors. The use of high-definition, standard-definition, software, 3G mobile phones, and telephones can be used in a mixture of terminals. Based on the current status of the organization and business needs, the construction of video conferences will be gradually focused.
For the needs of users, some manufacturers have proposed the integration of high-definition, standard definition, software, 3G mobile phones and telephone access methods, to provide users with video conferencing products anytime, anywhere. Such products use H.323 and SIP international standard protocols, which are not only the choice for subsequent upgrade of videoconferencing systems, but also feature the extension of existing videotelephone conferences using dedicated lines, dedicated conference rooms and dedicated hardware devices to the Internet. , 3G mobile phones and telephones, greatly facilitate the users to participate in the conference. These manufacturers mainly include Radvision, Huawei, and 3gmeeting of Melting Point.
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