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Chinese National Standard Category: Communication network transmission system interface |
English Title: | ISDN Subscribers - Specification for Network Interfaces. Part 4 Technical Specifications for Supplementary Services |
Chinese Title: | ISDN用户--网络接口规范 第4部分:补充业务技术规范 |
Standard No.: | YDN 034.4-1997 |
Category No.: | M14 |
Issued by: | Ministry of Posts and Telecommunications |
Issued on: | 1997-2-18 |
Implemented on: | 1997-3-1 |
Status: | valid |
Superseded by: | |
Superseded on: | |
Abolished on: | |
Superseding: | |
Word Count: | 69000 words |
Similar Standards: | GB/T 11596-1989 DB11/T 2181-2023 T/ITS 0027-2015 GB/T 11592-2011 YD/T 1795-2008 YD/T 1685.1-2007 YD/T 1685.2-2007 YD/T 1634-2007 YD/T 1350.2-2005 YD/T 1350.3-2005 YD/T 1350.1-2005 YD/T 1263-2003 YDN 108-1998 YD/T 1021-1999 YD/T 1017-1999 YD/T 997-1999 YDN 019-1996 GB/T 17114-1997 YD/T 910.22-1998 YD/T 910.21-1998 |
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