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ETSI TS 146 020
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ETSI TS 146 020 Digital cellular telecommunications system (Phase 2+); Half rate speech; Half rate speech transcoding (3GPP TS 46.020 version 14.0.0 Release 14)
standard by European Telecommunications Standards Institute, 04/01/2017
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Full Description
The present document specifies the speech codec to be used for the GSM half rate channel. It also specifies the test methods to be used to verify that the codec implementation complies with the present document.The requirements are mandatory for the codec to be used either in GSM Mobile Stations (MS)s or Base Station Systems (BSS)s that utilize the half rate GSM speech traffic channel.