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| International Standard Category: Other telecommunication terminal equipment |
YD/T 1686-2007 Speech Quality and Transmission Performance Requirements and Testing Methods for IP Telephony Terminal Equipment
IP电话终端设备语音质量及传输性能技术要求和测试方法 ;
| Category No.: | 33.050.99 | Valid Status: | superseded |
| Issued Organization: | Issued Date: | 2007-09-29 | |
| Implemented Date: | 2008-1-1 | Abolished Date: | 2011-06-01 |
| Superseded Standard.: | YD/T 1686-2011 Speech quality and transmission performance requirements and testing methods for IP telephony equipment |
Superseded Date: | 2011-6-1 |
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