同时具备数字音视频录像机（DVR）和数字音视频服务器（DVS）的功能。
With digital audio and video recorders (DVR) and digital audio and video servers (DVS) function.
目前的视频会议系统大多基于H . 323协议，在系统中由视频服务器来接收、转发音视频数据。
Most of existing video conferencing systems comply with H. 323 protocol, and have a video server to receive and transfer the voice and video.
典型产品有：智能广播服务器、智能数字控制器、数字音视频处理设备、无线通讯模块、人体检测系统等。
The typical products are: server of intelligent broadcasting, intelligent digital controller, digital audio processing units, wireless communication parts, human inspection system.
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