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ČSN is a protected designation of Czech national technical standards.
Integrated Services Digital Network (ISDN). Technical characteristics of telephony terminals. Part 1: General
Standard published on 1.8.1995
Selected format:Integrated Services Digital Network (ISDN) - Technical characteristics of telephony terminals - Part 1: General
Standard published on 1.6.1997
Selected format:Integrated Services Digital Network (ISDN). Technical characteristics of telephony terminals. Part 1: PCM A-Law handset telephony
Standard published on 1.8.1995
Selected format:Integrated Services Digital Network (ISDN) - Technical characteristics of telephony terminals - Part 2: PCM A-law handset telephony
Standard published on 1.6.1997
Selected format:Intergated Services Digital Network (ISDN). Technical characteristics of telephony terminals. Part 3: Pulse Code Modulation (PCM) A-law, loudspeaking and handsfree telephony
Standard published on 1.4.1996
Selected format:Integrated Services Digital Network (ISDN. Techncial characteristics of telephony terminals. Part 4: Additional Equipment Interface (AEI)
Standard published on 1.4.1996
Selected format:Integrated Services Digital Network (ISDN) - Technical characteristics for telephony terminals - Part 5: Wideband (7 kHz) handset telephony
Standard published on 1.3.1997
Selected format:Integrated Services Digital Network (ISDN) - Technical characteristics for telephony terminals - Part 6: Wideband (7kHz), loudspeaking and hands free telephony
Standard published on 1.3.1997
Selected format:Integrated Services Digital Network (ISDN) - Technical characteristics of telephony terminals - Part 7: Locally generated information tones
Standard published on 1.6.1997
Selected format:Integrated Services Digital Network (ISDN) - Technical characteristics for telephony terminals - Part 8: Speech transmission characteristics when using Low-Delay Code-Excited Prediction (LD-CELP) coding at 16 kbit/s
Standard published on 1.3.1997
Selected format:Latest update: 2025-12-18 (Number of items: 2 252 678)
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