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ČSN is a protected designation of Czech national technical standards.
Integrated Services Digital Network (ISDN) - Signalling System No.7 - Message Transfer Part (MTP) - Test specification [ITU-T Recommendations Q.781 and Q.782 (1993), modified]
Standard published on 1.10.1997
Selected format:Integrated Services Digital Network (ISDN) - Signalling System No.7 - Transaction Capabilities (TC) version 2 - Test responder specification
Standard published on 1.10.1997
Selected format:Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber Signalling System No.two (DSS2) protocol - Multiple Subscriber Number (MSN) supplementary service - Part 1: Protocol specification - [ITU-T Recommendation Q.2951, clause 2 (1995), modified]
Standard published on 1.10.1997
Selected format:Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber Signalling System No.two (DSS2) protocol - Multiple Subscriber Number (MSN) supplementary service - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification
Standard published on 1.11.1997
Selected format:Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber Signalling System No.two (DSS2) protocol - Calling Line Identification Presentation (CLIP) supplementary service - Part 1: Protocol specification [ITU-T Recommendation Q.2951, clause 3 (1995), modified]
Standard published on 1.10.1997
Selected format:Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber Signalling System No.two (DSS2) protocol - Calling Line Identification Presentation (CLIP) supplementary service - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification
Standard published on 1.11.1997
Selected format:Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber Signalling System No.two (DSS2) protocol - Calling Line Identification Restriction (CLIR) supplementary service - Part 1: Protocol specification [ITU-T Recommendation Q.2951, clause 4 (1995), modified]
Standard published on 1.10.1997
Selected format:Broadband Integrated Services Digital Network (B-ISDN). Digital SubscriberSignalling System No. two (DSS2) protocol. Calling Line Identification Restriction (CLIR) supplementary service. Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification
Standard published on 1.12.1997
Selected format:Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber signalling System No.two (DSS2) protocol - Connected Line Identification Presentation (COLP) supplementary service - Part 1: Protocol specification [ITU-T Recommendation Q.2951, clause 5 (1995), modified]
Standard published on 1.10.1997
Selected format:Broadband Integrated Services Digital Network (B-ISDN). Digital Subscriber Signalling System No. two (DSS2) protocol. Connected Line Identification Presentation (COLP) supplementary service. Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification
Standard published on 1.12.1997
Selected format:Latest update: 2025-12-23 (Number of items: 2 253 013)
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