PRETS 300 581-8 : NOV 97
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2); HALF RATE SPEECH; TEST SEQUENCES FOR THE GSM HALF RATE SPEECH CODEC (GSM 06.07 VERSION 4.2.0)
23-07-2013
12-01-2013
This European Telecommunications Standard (ETS) specifies the digital test sequences for the GSM half rate speech codec. These sequences test for a bit exact implementation of the half rate speech transcoder (GSM 06.20), Voice Activity Detector (GSM 06.42), comfort noise (GSM 06.22) and the discontinuous transmission (GSM 06.41).
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