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Chinese National Standard Category: Telephone communication equipment |
English Title: | Speech Quality and Transmission Performance Requirements and Testing Methods for IP Telephony Terminal Equipment |
Chinese Title: | 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 |
Standard No.: | YD/T 1686-2007 |
Category No.: | M40 |
Issued by: | |
Issued on: | 2007-09-29 |
Implemented on: | 2008-1-1 |
Status: | abolished |
Superseded by: | YD/T 1686-2011 Speech quality and transmission performance requirements and testing methods for IP telephony equipment |
Superseded on: | 2011-6-1 |
Abolished on: | 2011-06-01 |
Superseding: | |
Word Count: | 13000 words |
Similar Standards: | GB 10755-1989 GB/T 12197-1990 YD/T 694-1993 T/CCSA 238.1-2018 GB/T 19516-2017 GB/T 26257-2010 YD/T 1889-2009 YD/T 1394-2009 YD/T 1395-2009 GB/T 17113-2008 GB/T 3482-2008 GB/T 21545-2008 GB/T 9043-2008 JT/T 703-2007 SN/T 1429.7-2007 YD/T 1686-2007 YD/T 1666-2007 YD/T 1623-2007 YD/T 1622-2007 YD/T 868-2007 |
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