Expansion of all communication services and overall quality is driving all international system. 所有通讯服务及总体质量的扩展都在对国际系统产生一种压力。
Oversees the coordination of building space allocation and layout, communication services and facilities expansion. 预见建筑的分配和布局、沟通服务设施和设备扩建。
The Research and Implementation of Mobile Communication Services(CS) for Distance Education System 远程教育中手机通信服务(CS)系统的研究与实现
The scarceness of wireless spectrum is the bottleneck that hampers the sustainable development of wireless communication services. 无线频谱紧缺是限制无线通信与服务应用持续发展的瓶颈。
This Recommendation covers the technical requirements for the systems and terminals of broadband audiovisual communication services defined in H.200/AV.100-series Recommendations. 本建议适用于H.200/AV.100系列建议中所规定的宽带视听通信业务的系统和终端的技术要求。规定H.310单向和双向两种宽带视听终端。