China Voice communication GB Standards Search Result

and Chinese version GB Standards, you can purchase directly in the web page; After receive your payment, we will send the GB Standards PDF file to your Email within 1~3 days.
2. Other English version GB Standards are not ready translated, only after get your order, then we translate them, time usually need 3-5 days .


	GB/T 40420.2-2021 Broadband customer gateway virtualization based on public telecommunication network—Part 2 ：Technology requirements of voice virtualization 基于公用电信网的宽带客户网关虚拟化第2部分：语音虚拟化技术要求 - 英文版
	GB 28440-2012 Voice communication network management platform for firefighting command center 消防话音通信组网管理平台 - 英文版
	GB/T 7609-1995 General test method for transmission performance of PCM voice channel in telecommunication network 电信网中脉冲编码调制音频通路传输特性常用测试方法 - 英文版

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