Focus on architectures of networked multimedia applications, the light-weight sessions (LWS) and the application level framing (ALF) were analyzed in the paper.

针对网络多媒体应用体系结构，分析了通用的轻型会话系统模型LWS和应用层组帧alf的设计原则。

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These sessions may include Internet Multimedia conferences, distance learning, Internet telephone calls and multimedia distribution.

这些会话可能包括因特网多媒体会议、远程学习、因特网电话通话和多媒体分配等。

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H. 323 and SIP are the main signaling protocols which control multi-media sessions in a multimedia conference system over the packet network.

在分组交换网络中，用于视频会议系统的多媒体会话信令协议主要有H。323和SIP。

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These electronic devices provide control and security across the edges of two communications networks that carry voice, video and multimedia sessions.

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