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| YD/T 1686-2011 Speech quality and transmission performance requirements and testing methods for IP telephony equipment (English Version) |
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Detail of YD/T 1686-2011
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Introduction of YD/T 1686-2011
本标准规定了IP电话设备在手柄、免提、头戴机及电接口条件下传输性能的技术要求和测试方法，并给出应达到的语音质量性能建议。
本标准适用于设计用于传输窄带（300Hz～3.4kHz）语音的IP电话功能的设备，包括各种接入IP网络的移动或固定的IP电话终端、IP电话网关、IP视讯会议终端、综合接入设备（IAD），以及软电话等。
Contents of YD/T 1686-2011