如果网络通讯持续存在问题，那么远程会话也可以在客户端断开连接之后继续操作。
If network communication problems persist, the remote session is able to continue operating while the client disconnects.
为了说明扩展的方法，本教程将演示通过扩展CollaborationDialog和Cobrowse 小部件来在Web协同浏览会话中实现即时通讯功能的过程。
To see how, follow this tutorial and extend the Collaboration Dialog and Cobrowse widgets to deliver instant messaging capability in a Web cobrowsing session.
IP电话是将语音数据通过分组网络传输的，用分组网络作为会话者的主要通讯信道。
IP phone transmits the voice data through the grouping network that is the main communication channel for the people in conversation.
在拨号广域网中设置较低的会话质量同样可以达到安全多媒体会议的通讯效果。
The system also provides secure communication on WAN if set comparably low session quality.
在拨号广域网中设置较低的会话质量同样可以达到安全多媒体会议的通讯效果。
The system also provides secure communication on WAN if set comparably low session quality.
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