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ČSN is a protected designation of Czech national technical standards.
Digital cellular telecommunications system (Phase 2) - Performance requirements on the mobile radio interface (GSM 04.13)
Standard published on 1.7.1997
Selected format:Evropský digitální buňkový telekomunikační systém (Fáze 2) - Požadavky na funkci rádiového rozhraní (GSM 04.13) (Norma k přímému použití jako ČSN).
Standard published on 1.9.2003
Selected format:
WITHDRAWN published on 1.8.1996
Selected format:European digital cellular telecommunications system (Phase 2). Application of the Base Station System. Application Part (BSSAP) on the E-interface (GSM 09.08)
Standard published on 1.8.1996
Selected format:European digital cellular telecommunications system - Half rate speech - Part 1: Half rate speech processing functions
Standard published on 1.6.1997
Selected format: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:Latest update: 2026-02-23 (Number of items: 2 263 409)
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