Institute of Electrical and Electronics Engineers (IEEE)
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IEEE 269a-2012
IEEE 269a-2012 history
2012IEEE 269a-2012 IEEE Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets; Amendment 1
2007IEEE 269A-2007 Standard for Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets@ Handsets@ and Headsets Amendment 1