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ČSN is a protected designation of Czech national technical standards.
Integrated Services Digital Network (ISDN). Call Hold (HOLD) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network
Standard published on 1.7.1997
Selected format:Integrated Services Digital Network (ISDN). Call Hold (HOLD) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network
Standard published on 1.7.1999
Selected format:Digitální síť integrovaných služeb (ISDN) - Přidržení spojení (HOLD) - 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). Meet-Me Conference (MMC) supplementary service. Functional capabilities and information flows
Standard published on 1.6.1995
Selected format:Integrated Serivces Digital Network (ISDN). Advice of Charge (AOC) supplementary service. Functional capabilities and information flows
Standard published on 1.6.1995
Selected format:Integrated Services Digital Network (ISDN). Advice of Charge (AoC) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 1: Protocol specification
Standard published on 1.6.1995
Selected format:Integrated Services Digital Network (ISDN). Advice of Charge (AOC) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 1: Protocol specification
Standard published on 1.7.1999
Selected format:Integrated Services Digital Network (ISDN) - Advice of Charge (AOC) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification
Standard published on 1.7.2000
Selected format:Integrated Services Digital Network (ISDN). Advice of Charge (AoC) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification
Standard published on 1.8.1996
Selected format:Integrated Services Digital Network (ISDN). Advice of Charge (AOC) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification
Standard published on 1.7.1999
Selected format:Latest update: 2025-12-18 (Number of items: 2 252 678)
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