IEEE Std P269a/D5.2, Jan 2012（IEEE Draft Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets - Amendment 1）是电气电子工程师学会于 2012 年 1 月形成的草案。公开目录将其标为非现行（Inactive），主题领域包括 Communication, Networking and Broadcast Technologies、Components, Circuits, Devices and Systems、Computing and Processing[1]。参见IEEE 标准。
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IEEE Std P269a/D5.2, Jan 2012
IEEE Std P269a/D5.2, Jan 2012 是电气电子工程师学会的草案，题为“IEEE Draft Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets - Amendment 1”；公开目录标为非现行（Inactive），著录年份为 2012 年。
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- IEEE Std P269a/D5.2, Jan 2012 — IEEE Xplore 题录 · IEEE
standard_number=P269a/D5.2, Jan 2012; status=Inactive; modifier=Draft
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