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ČSN is a protected designation of Czech national technical standards.
Digitální síť integrovaných služeb (ISDN) - Zamezení identifikace propojené linky (COLR) - Doplňková služba - Protokol digitálního účastnického signalizačního systému číslo jedna (DSS1) - Část 6: Abstraktní testovací sestava (ATS) a specifikace dílčí proformy dodatečné informace o implementaci protokolu pro testování (PIXIT) síťové části (Norma k přímému použití jako ČSN).
Standard published on 1.8.2000
Selected format:Integrated Services Digital Network (ISDN). User-network interface layer 3. Specifications for basic call control
Standard published on 1.6.1995
Selected format:Integrated Services Digital Network (ISDN). User-network interface layer 3. Specifications for basic call control. Specification Description Language (SDL) diagrams
Standard published on 1.6.1995
Selected format:Integrated Services Digital Network (ISDN). Support of CCITT Recommendation X.21, X.21 bis a X.20 bis based Data Terminal Equipments (DTEs) by an ISDN. Synchronous and asynchronous terminal adaption functions
Standard published on 1.6.1995
Selected format:Integrated Services Digital Network (ISDN) Attachment requirements for terminal equipment to connect to an ISDN using ISDN basic access. Layer 3 aspects (including Amendment A1)
Standard published on 1.6.1995
Selected format:Integrated Services Digital Network (ISDN). Application of the ISDN user part of CCITT Signalling System No. 7 for international ISDN interconnections (ISUP version 1)
Standard published on 1.11.1994
Selected format:Digitální síť integrovaných služeb (ISDN) - Aplikace uživatelské části (ISUP) signalizačního systému číslo 7 (SS7) ISDN pro mezinárodní propojení ISDN podle ITU-T (ISUP verze 1) - Změna 1: Schéma přednosti mezinárodní tísňové služby (IEPS) [mod ITU-T Q.767/A1: 2002] (Norma k přímému použití jako ČSN).
Standard published on 1.12.2003
Selected format:Integrated Services Digital Network (ISDN). Generic keypad protocol for the support of supplementary services. Digial Subscriber Signalling System No. one (DSS1) protocol. Part 1: Protocol specification
Standard published on 1.6.1995
Selected format:Integrated Services Digital Network (ISDN) - Generic keypad protocol for the support of supplementary services - Digital Subscriber Signalling System No.one (DSS1) protocol - Part 1: Protocol apecification
Standard published on 1.7.1999
Selected format:Integrated Services Digital Network (ISDN). Generic keypad protocol for the support of supplementary services. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification
Standard published on 1.12.1997
Selected format:Latest update: 2025-12-18 (Number of items: 2 252 678)
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