该文主要采用CDN技术，从设计到实现等几个方面对即时信息通信系统的服务器端进行详细阐述。

This paper mainly USES the CDN technology to illustrate the server side implementation process in the real time messaging communication system at the aspects of design and implementation and so on.

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尽管此客服端不带视频功能，但是，即时信息和语音通信都可以直接通过无线网络使用。

Although video streaming is a no-show, both full IM and voice communication is supported directly over wireless networks.

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她拿即时GIS（地理信息处理系统）地理数据做了一个比喻。 通信公司最开始反对提供GIS数据，因为成本太高，而且消费者也不需要。

She draws a comparison with real time GIS location data, which telecom companies initially objected was too expensive to deliver and not really needed by consumers.

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