There are more and more companies doing video conference systems now, and with the development of the video conference system, various video conference systems also appear on the market. ThereforeSelected, today I have compiled some precautions on buying a video conference system. I hope it will be helpful to buyers who want to buy a video conference system!
The definition and composition of the video conference system
1. Video conference system
Video Conference System is a two -way, multi -point, and real -time audio -visual audio interaction system based on broadband networks.The video conference system is mainly composed of terminal equipment, transmission channels (communication networks) and multi -point control units.
The terminal device is the input and output device of the video conference system.It mainly includes audio/video input/output equipment, audio/video compilation/decoding equipment, information processing equipment, and multi -way reuse/decomposition equipment. Through these equipment, the participants of each venue can clearly see other venues from other venues.Scenes, and can discuss issues and share data information.Its role is to process the various digital signals such as audio, video, data, and signaling, and synthesize it into one or multi -way digital code flow, and then convert it into a data format suitable for network transmission, and send it to the channel to the channelTransfer.
2. Communication network
The communication network refers to the general term that connects the terminal device that enables them to transmit audio, video and data, including cables, fiber fiber, microwave, and satellite. In terms of transmission, it can be based on existing various network technologies.Such as LAN, ISDN, Internet, FDDI/ATM and so on.Use it to transmit activities or static image signals, voice signals, data signals, and system control signals.
However, due to the large difference in the principles and structures of different communication networks, the difference in micro -deployment structure of the video conference system (including the connection structure of the terminal system, the MCU configuration scheme structure, etc.).
Multi -point control unit (MCU) is a digital processing unit, which is usually set at the network center node. Meetings that can be used by multiple locations can also communicate with each other at the same time, and its role is equivalent to switch.Its main function is to mix and switch digital signals such as multi -way audio, video, data signals and other digital signals in the digital domain.It will summarize the data from each terminal equipment, and simultaneously separate signals such as images, voice, data, and signaling, and then mix and switch the same type of information of each venue.To the corresponding venue.It is just like the director of the TV show, which can switch different pictures according to the needs of scene changes.
Type and application of the video conference system
Generally speaking, the video conference system has different categories from various angles.Depending on the number of conference nodes, it can be divided into point -to -point video conference systems and multi -point video conference systems; according to the communication network it runs, it is divided into digital data network (DDN) or other special network types, LAN/wide area network (LAN/LAN/LAN/WAN) type and public exchange telephone network (PSTN) type.The terminal type selected from the video conference can be divided into two categories: desktop type and conference room type.The conference room video conference system is suitable for large -scale conferences. One or more large screens are installed in a special conference room with environmental control equipment. The system consists of screens, cameras, microphones, and auxiliary devices. These configurations are fixed. These configurations are fixed.It can provide high -quality video and synchronous audio, but the cost is high.The desktop video conference system adds some additional equipment to the general personal computer, comprehensively use audio and video and network communication technology, and use computer software to realize the mutual communication between people at different locations. Therefore, the cost of use is much lower.It is the direction of the development of the video conference system.
The video conference system embodies barrier -free information communication and collaboration, which can achieve high -efficiency, high -quality internal and external communication and collaboration: so as long as the industry that requires more information to communicate between points, the system is useful.Products, information, knowledge, joy and friendship spread to every corner of the world.For example, in the following industries and scenes, the system can be competent.
Pay attention to four steps for the selection of the conference system
The first is ease of use: Whether you can enter the meeting anytime, anywhere, whether the same common mail or instant messaging tools can be integrated to facilitate the arrangement and entering the meeting, whether to provide accounts and conference management tools, and whether software design considers the customer experience.
The second is quality and stability: the sharing efficiency of the screen document, the quality of audio and video, whether to support traditional conferences to ensure stability, whether the stability of the meeting can be stable for a long time, whether it can achieve the ideal resultswait.
The third is security: whether the infrastructure of the service provider, whether the data transmission and customer information are safe, whether there is a complete disaster recovery mechanism and real -time monitoring mechanism, or not internationally passed the security management certification, the meeting will not be a meeting, the meeting will not be possible.It will require enterprises to open other potential ports, etc.
The fourth is the cost: whether the service provider can provide a flexible and diverse charging model, such as the monthly package monthly, the flow charging, the account monthly, the package, etc., whether there is a popular city deployment to achieve local access without paying the long -distance communication fee without paying the long -distance communication feeWhether to provide special services and specific cost customization.
The fourth is the best service support: whether to support 7*24 hours of service support, whether there are multi -language services, whether the service can respond in time, whether the quality guarantee of SLA service is provided, whether a personalized bill is provided, whether the large -scale meeting is on -site support for on -site supportWhether it can provide other services such as IR release network training, products are the most important products and bad services.