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ČSN is a protected designation of Czech national technical standards.
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 1.7.1999
Selected format:Integrated Service Digital Network (ISDN). User-network interface data link layer specification. Application of CCITT Recommendations Q.920/I.440 a Q.921/I.441
Standard published on 1.6.1995
Selected format:Integrated Services Digital Network (ISDN). Malicious Call Identification (MCID) supplementary service. Funtional capabilities and information flows
Standard published on 1.6.1995
Selected format:Integrated Services Digital Network (ISDN). Malicious Call Identification (MCID) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol
Standard published on 1.6.1995
Selected format:Integrated Services Digital Network (ISDN) - Malicious Call Identification (MCID) 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). Malicious Call Identification (MCID) 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) - Malicious Call Identification (MCID) 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:Integrated Services Digital Network (ISDN). Malicious Call Identification (MCID) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user
Standard published on 1.10.1997
Selected format:Integrated Services Digital Network (ISDN) - Malicious Call Identification (MCID) supplementary service - Digital Subscriber Signalling System No.one (DSS1) protocol - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user
Standard published on 1.7.1999
Selected format:Integrated Services Digital Network (ISDN). Malicious Call Identification (MCID) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user
Standard published on 1.7.1997
Selected format:Latest update: 2025-12-18 (Number of items: 2 252 678)
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