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| Position: Chinese Standard in English/YDN 034.4-1997 |
| YDN 034.4-1997 ISDN Subscribers - Specification for Network Interfaces. Part 4 Technical Specifications for Supplementary Services (English Version) | |||
| Standard No.: | YDN 034.4-1997 | Status: | valid remind me the status change |
| Language: | English | File Format: | |
| Word Count: | 69000 words | Price(USD): | 2070.00 remind me the price change |
| Implemented on: | 1997-3-1 | Delivery: | via email in 1~3 business day |
| Standard No.: | YDN 034.4-1997 |
| English Name: | ISDN Subscribers - Specification for Network Interfaces. Part 4 Technical Specifications for Supplementary Services |
| Chinese Name: | ISDN用户--网络接口规范 第4部分:补充业务技术规范 |
| Chinese Classification: | M14 Communication network transmission system interface |
| Professional Classification: | YD Professional Standard - Telecommunication |
| Issued by: | Ministry of Posts and Telecommunications |
| Issued on: | 1997-2-18 |
| Implemented on: | 1997-3-1 |
| Status: | valid |
| Language: | English |
| File Format: | |
| Word Count: | 69000 words |
| Price(USD): | 2070.00 |
| Delivery: | via email in 1~3 business day |