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ČSN is a protected designation of Czech national technical standards.
WITHDRAWN published on 1.2.1995
Selected format:Private Telecommunications Network (PTN). Method for the specification of basic and supplementary services
Standard published on 1.8.1995
Selected format:Private Integrated Services Network (PISN) - Specification - functional models and information flows - Call completion supplementary services [ISO/IEC 13866 (1995), modified]
Standard published on 1.4.1997
Selected format:Soukromá síť integrovaných služeb (PISN) - Specifikace, funkční model a informační toky - Dokončení spojení - Doplňkové služby (mod ISO/IEC 13866: 1995) (Norma k přímému použití jako ČSN).
Standard published on 1.12.2003
Selected format:
WITHDRAWN published on 1.9.1995
Selected format:Private Integrated Services Network (PISN). Inter-exchange signalling protocol. Call completion supplementary services
Standard published on 1.2.1997
Selected format:Soukromá síť integrovaných služeb (PISN) - Protokol meziústřednové signalizace - Dokončení volání - Doplňkové služby [mod ISO/IEC 13870: 2003] (Norma k přímému použití jako ČSN).
Standard published on 1.6.2004
Selected format:
WITHDRAWN published on 1.9.1995
Selected format:Private Telecommunication Network (PTN). Specification, functional model and information flows. Call offer supplementary service
Standard published on 1.1.1996
Selected format:Private Integrated Services Network (PISN) - Specification, functional models and information flows - Call offer supplementary service
Standard published on 1.1.2000
Selected format:Latest update: 2025-07-17 (Number of items: 2 208 096)
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