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200 10$aIEEE Std 269a-2012 (Amendment to IEEE Std 269-2010) /$fInstitute of Electrical and Electronics Engineers
210  1$a[Place of publication not identified] :$cIEEE,$d2012.
215   $a1 online resource (ix, 21 pages)
330   $aAbstract: Practical methods for making laboratory measurements of electroacoustic characteristics of analog and digital telephones, handsets, and headsets are presented. The methods may also be applicable to a wide variety of other communications equipment, including cordless, wireless, and mobile communications devices. Measurement results may be used to evaluate these devices on a standardized basis. Application is in the frequency range from 100 Hz to 8500 Hz. Keywords: analog telephones, digital telephones, electroacoustic measurements on telephones, handsets, headsets, IEEE 269, IEEE 269a, telephony, voice transmission performance.
517   $aIEEE Std 269a-2012 (Amendment to IEEE Std 269-2010): IEEE Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets--Amendment 1
517   $aIEEE Std 269a-2012 
606   $aTelephone$xEquipment and supplies
606   $aTelephone$xEcho suppressors
615  0$aTelephone$xEquipment and supplies.
615  0$aTelephone$xEcho suppressors.
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