China 'GB/T 40420.2-2021
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
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
Issued Date:2021/10/11
Implemented Date:2022/5/1
Issued by:
The Standardization Administration of the People's Republic of China