The role of coordinator is defined within the Coordination Service (the CoordinatorRef is returned on the call -- which the application uses later to invoke the Completion protocol).
在协调服务中定义协调器角色（在调用中返回 CoordinatorRef ― 应用程序稍后用这个 CoordinatorRef 来调用完成协议）。
The test results show that this gateway runs stably with a high call completion rate, and will meet the mobile operators' need of providing 3g video value-added service well.
测试结果表明该网关运行稳定，接通率高，能较好的满足运营商提供3 G视频增值业务的需求。
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