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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| YD/T 4217-2023 |
Signaling Security Technical Requirements Between Mobile Communication Network Operators {译} 移动通信网运营商间信令安全技术要求 |
China Telecommunication Industry
Standards Signaling Security Technical |
 English PDF |
| YD/T 1913-2009 |
Security Technical Requirements and Test Methods for Signaling Gateway Based on Softswitch 基于软交换的信令网关设备安全技术要求和测试方法 |
China Telecommunication
Standards Signaling Security Technical |
English PDF |
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