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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| YD/T 1928.2-2009 |
Softswitch Network Management System Technical Specification. Part 2: NMS Function 软交换网网络管理技术要求 第2部分：网络管理系统功能 |
China Telecommunication
Standards Technical Specification Softswitch |
 English PDF |
| YD/T 1928.1-2009 |
Softswitch Network Management System Technical Specification. Part 1: General Technical Requirements 软交换网网络管理技术要求 第1部分：总体技术要求 |
China Telecommunication
Standards Technical Specification Softswitch |
English PDF |
| YD/T 1640-2007 |
Technical Specification for Softswitch and Digital Trunking Mobile Communication System Inter-working between Networks 不同运营商软交换和数字集群网之间的互通技术要求 |
China Telecommunication
Standards Technical Specification Softswitch |
English PDF |
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