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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| 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 |
China National Standards Voice communication network |
 English PDF |
| GB 28440-2012 |
Voice communication network management platform for firefighting command center 消防话音通信组网管理平台 |
China National Standards Voice communication network |
English PDF |
| 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 |
China National Standards Voice communication network |
English PDF |
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