| Standard No.: | YD/T 2011-2009 |
| Chinese Name: | 基于统一IMS的业务技术要求 呼叫等待与呼叫保持业务（第一阶段） |
| English Name: | Technical Requirements of Services based on the Unified IMS Call Waiting (CW) and Call HOLD (HOLD) Services (Release 1) |
| Professional Classification: | M21 Telecommunication services |
| Professional Classification: | YD Professional Standard - Telecommunication |
| ICS Classification: |
33.030
|
| Issued by: | |
| Issued on: | 2009-12-11 |
| Implemented on: | 2010-01-01 |
| Status: |
VALID |
| Target Language: | English |
| File Format: | PDF |
| Word Count: | |
| Translation Price: | please email coc@codeofchina.com for quotation
|
| Delivery: | via email in
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