当预定数量的参与者存在和可用时，会议服务器发起会议呼叫。
When the predefined number of participants are present and available, the conference server initiates the conference call.
跟他们共事了一段时间之后就是个好时机，他们会自己发起会议的(也会为此付钱的)。
There's a good chance that after you've been working with them for a while, they'll initiate the in-person meeting themselves (and pay for it).
你可以传送文件，发起会议，保存聊天记录，定制个性化界面主题——这一切跟普通的聊天应用程序没有什么区别。
You can send files, start meetings, record your chat history, customize your theme, and more - just like regular IM apps allow.
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