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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| YD/T 1986-2009 |
Technical requirements for Cx/Dx/Sh interfaces in IMS system of mobile communication network 移动通信网ims系统接口技术要求 cx/dx/sh接口 |
China Telecommunication
Standards Technical requirements Cx |
 English PDF |
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