This integrated services network is built by using many kinds of service performance assurance mechanisms upon a general packet switched network.

这种网络是通过在统一的分组交换网络上实现各种不同的服务性能保证机制来构造的。

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Dynamic routing technology of circuit-switched network is critical to bring non-hierarchical network into full services and improve the grade of service eventually.

无级电话网动态路由技术是充分利用现有设备、提高服务质量的关键技术。

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Definition of: ISDN (Integrated Services digital Network) an international standard for switched, digital dial-up telephone service for voice and data.

定义：ISDN(综合服务数字网络)，是一个国际转换标准，是为了语音和数据的数码拨号上网电话服务。

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The location based social network has been purchased by Facebook, and as part of the deal, the service will be switched off in January 2012.

FORBES: Gowalla's Accquistion Is Another Web Service Being Switched Off For Profit