International Standards For Videoconferencing
Apr 12, 2018
International standards for videoconferencing
In actual purchase, if you want to buy suitable videoconferencing products, you must first find out the relevant standards of the industry. For now, what are the international standards for video conference sound and video?
H.323 (IP): H261, H263, and H.264 are used for the image coding and decoding technology, and G711 or G722, G728, G723.1, and G729A are used for the voice coding and decoding technology.
H.320 (ISDN): H261 or H263 is used for image coding and decoding technology, and G711 or G722, G728 is used for voice coding and decoding technology.
First understand the current status of your company's current network, whether the video conference in the country can ensure that the uplink and downlink symmetry is above 512K, and whether the video conference with Europe and the United States can ensure that the uplink and downlink symmetry is above 768K. If the network is in the form of a public network and the packet loss, delay, and jitter are severe, the network must be reconstructed. Generally, the network delay can be controlled within 20ms, and the special situation should not exceed 50ms. The network packet loss is best. The control should be within 1%, and the special case should not exceed 3% (how much network data is lost, and there are statistics when testing with video conferencing equipment). For networks with large network traffic, it is recommended to optimize the network or increase the capacity of the line.
Understand what brands and types of devices are used by the other party? What are the coding and decoding technologies for video conference images and sounds? Are they compatible with international video conferencing standards? Are they compatible with our devices? It is particularly important to understand each other's network conditions. If the other party's network bandwidth is low, even if we have enough bandwidth, the video conferencing quality will be greatly reduced. The quality depends on the network bandwidth is low.
