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ČSN is a protected designation of Czech national technical standards.
European digital cellular telecommunications system - Half rate speech - Part 2: Half rate speech transcoding (GSM 06.20)
Standard published on 1.6.1997
Selected format:Digital cellular telecommunications system (Phase 2) - Half rate speech transcoding (GSM 06.20 version 4.3.1)
Standard published on 1.6.1999
Selected format:European digital cellular telecommunications system - Half rate speech - Part 3: Substitution and muting of lost frames for half rate speech traffic channels (GSM 06.21)
Standard published on 1.6.1997
Selected format:European digital cellular telecommunications system - Half rate speech - Part 4: Comfort noise aspects for the half rate speech traffic channels (GSM 06.22)
Standard published on 1.6.1997
Selected format:European digital cellular telecommunications system - Half rate speech - Part 5: Discontinuous transmission (DTX) for half rate speech traffic channels
Standard published on 1.6.1997
Selected format:European digital cellular telecommunications system - Half rate speech - Part 6: Voice Activity Detector (VAD) for half rate speech traffic channels (GSM 06.42)
Standard published on 1.6.1997
Selected format:Digital cellular telecommunications system - Half rate speech - Part 7: ANSI-C code for the GSM half rate speech codec (GSM 06.06)
Standard published on 1.6.1997
Selected format:Digital cellular telecommunications system - Half rate speech - Part 7: ANSI-C code for the GSM half rate speech codec (GSM 06.06 version 4.2.1)
Standard published on 1.3.1999
Selected format:Digital cellular telecommunications system - Half rate speech - Part 8: Test sequences for the GSM half rate speech codec (GSM 06.07)
Standard published on 1.6.1997
Selected format:Digital cellular telecommunications system (Phase 2) - Half rate speech - Part 8: Test sequences for the GSM half rate speech codec (GSM 06.07 version 4.2.1)
Standard published on 1.6.1999
Selected format:Latest update: 2025-08-20 (Number of items: 2 213 083)
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