该合同要求该系统集成商提供服务器，存储器，网络，无线，统一通信和呼叫中心援助等服务。
The contract calls for the systems integrator to provide servers, storage, networking, wireless, unified communications, and call center assistance.
无线呼叫服务系统为点对多点通信，存在信道冲突问题。
The wireless calling service system is a kind of one point to multipoint communication, which has the problem of channel collision.
无线通信系统采用移动通信提供的短消息服务和网上无线呼叫服务。
Wireless communication adopts the short message service of GSM and network wireless call service.
无线通信系统采用移动通信提供的短消息服务和网上无线呼叫服务。
Wireless communication adopts the short message service of GSM and network wireless call service.
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