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ČSN is a protected designation of Czech national technical standards.
Public Switched Telephone Network (PSTN) - Subscriber line protokol over the local loop for display (and related) services - Part 1: On hook data transmission
WITHDRAWN published on 1.1.1998
Selected format:Public Switched Telephone Network (PSTN) - Subscriber line protocol over the local loop for display (and related) services - Part 2: Off-hook data transmission
WITHDRAWN published on 1.8.1998
Selected format:ASN.1 library definition - Version 1.1
Standard published on 1.1.1998
Selected format:Broadband Integrated Services Digital Network (B-ISDN) - Signalling System No.7 - Interworking between Broadband ISDN User Part (B-ISUP) and Digital Subscriber Signalling System No.two (DSS2) - [ITU-T Recommendation Q.2650 (1995), modified]
Standard published on 1.5.1998
Selected format:Broadband Integrated Services Digital Network (B-ISDN) - Signalling System No.7 - Interworking between Broadband ISDN User Part (B-ISUP) and Narrowband ISDN User Part (ISUP) - [ITU-T Recommendation Q.2660 (1995), modified]
Standard published on 1.5.1998
Selected format:Broadband Integrated Services Digital Network (B-ISDN) - Signalling System No.7 - B-ISDN User Part (B-ISUP) Capability Set 1 (CS1) - Basic services [ITU-T Recommendation Q.2761 to 2764:1995, modified]
Standard published on 1.5.1998
Selected format:Broadband Integrated Services Digital Network (B-ISDN) - Signalling System No.7 - B-ISDN User Part (B-ISUP) Capability Set 1 (CS1) - Supplementary services [ITU-T Recommendation Q.2730 (1995), modified]
Standard published on 1.5.1998
Selected format:Integrated Services Digital Network (ISDN) - Signalling System No. 7 - Digital cellular telecommunications system (Phase 2) - Application of ISDN User Part (ISUP) version 2 for the ISDN-Public Land Mobile Network (PLMN) signalling interface - Part 1: Protocol specification (GSM 09.12 version 4.1.1)
Standard published on 1.3.1998
Selected format:Integrated Services Digital Network (ISDN) - Signalling System No. 7 - Digital cellular telecommunications system (Phase 2) - Application of ISDN User Part (ISUP) version 2 for the ISDN-Public Land Mobile Network (PLMN) signalling interface - Part 1: Protocol specification (GSM 09.12 version 4.2.2)
Standard published on 1.2.2000
Selected format:Integrated Services Digital Network (ISDN) - Signalling System No.7 - Digital cellular telecommunications system (Phase 2) - Application of ISDN User Part (ISUP) version 2 for the ISDN-Public Land Mobile Network (PLMN) signalling interface - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification
Standard published on 1.5.1999
Selected format:Latest update: 2026-01-11 (Number of items: 2 254 176)
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