With a conventional PBX, separate networks are necessary for voice and data communications.

用常规p BX时，话音和数据通信必须有两个分开的网络。

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Sparse Mobile Ad Hoc Networks routing protocols can provide data communications for nodes in different connected domain, which can better meet the needs of the intermittently connected applications.

稀疏移动自组网的路由协议能为位于不同连通域的节点提供数据通信，因此能够更好满足非全连通网络的应用需求。

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They are well-suited for use in proprietary wireless communications networks, as well as for scientific observation, data gathering and the Global Positioning System (GPS).

这种卫星非常适合专有的无线通讯网络使用，也很适合于科学观察、信息收集和全球定位系统使用。

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Two American telecoms groups bought data-communications networks .

ECONOMIST: Business this week | The

He headed operations at data communications hardware maker Juniper Networks for a year before jumping to Microsoft and taking over the plum job of running the division that oversees Office.

FORBES: Magazine Article

"LTE is the future of mobile communications, and faster data networks will become a key area of differentiation for consumers when choosing their mobile devices, " said Kevin Ho, President of the Handset Product Line of Huawei Device.

ENGADGET: Huawei Ascend P1 LTE named as EE exclusive in UK, other markets to follow