归纳出需求较大的几种视讯应用，视讯业务涉及的主要技术标准和基于不同网络的视讯业务解决方案。
Secondly, some applications with large demand, primary technical standards and service solutions based on different networks about video conferencing are presented.
归纳出需求较大的几种视讯应用，视讯业务涉及的主要技术标准和基于不同网络的视讯业务解决方案。
Secondly, some applications with large demand, primary technical standards and service solutions based on different networks about video conferencing are presented.
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