YDN 115.2-1999
Test specification for China intelligent network services (wide area Centrex) (internal standard) (English Version)
- Standard No.
- YDN 115.2-1999
- Language
- Chinese, Available in English version
- Release Date
- 1999
- Published By
- Professional Standard - Post and Telecommunication
- Latest
- YDN 115.2-1999
YDN 115.2-1999 history
- 1999 YDN 115.2-1999 Test specification for China intelligent network services (wide area Centrex) (internal standard)
