早有预言说,桌面会议视频系统将是“明天”的应用,就眼下的情形看,这个时候还远未到来,它正面临的几个障碍却让其前途显得有点模糊。 首先,桌面型的会议视频系统参与人数有限。不少用户认为,桌面型不及会议室型用处大。其次,桌面会议视频系统还不能与ISDN实现很好的融合。ISDN的吞吐量是会议视频系统所必需的,但ISDN连接困难、费用较高。并且一旦安装好,想再换个地方非常困难。还有,桌面会议视频系统所要求的可处理视频的PC和各种附件价格还不便宜。每 It has long been predicted that the desktop conferencing video system will be “Tomorrow’s” application. For the time being, this time is far from yet. The obstacles it faces make its future a bit vague. First, there is limited participation in desktop videoconferencing systems. Many users believe that the desktop is not as large as the size of the conference room. Second, the desktop video conferencing system can not achieve a good integration with ISDN. ISDN throughput is required for conferencing video systems, but ISDN connectivity is expensive and expensive. And once installed, it is very difficult to change places. Also, the price of a PC capable of processing video and various attachments required for a desktop conferencing video system is not cheap. each