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STN is a protected designation of Slovak national technical standards.
Integrated Services Digital Network (ISDN). Signalling System No.7. ISDN User Part (ISUP) version 3 for the international interface. Part 17: Call Waiting (CW) supplementary service [ITU-T Recommendation Q.733, clause 1 (1992), modified]
Standard published on 1.4.2002
Selected format:Integrated Services Digital Network (ISDN). Signalling System No.7 (SS7). ISDN User Part (ISUP) version 4 for the international interface. Part 17: Call Waiting (CW) supplementary service [ITU-T Recommendation Q.733, clause 1 (1992) modified]
Standard published on 1.5.2002
Selected format:Integrated Services Digital Network (ISDN). Signalling System No.7. ISDN User Part (ISUP) version 2 for the international interface. Part 18: Completion of Calls to Busy Subscriber (CCBS) supplementary service
Standard published on 1.8.1998
Selected format:Integrated Services Digital Network (ISDN). Signalling System No.7. ISDN User Part (ISUP) version 3 for the international interface. Part 18: Completion of Calls to Busy Subscriber (CCBS) supplementary service [ITU-T Recommendation Q.733, clause 3 (1997), modified]
Standard published on 1.4.2002
Selected format:Integrated Services Digital Network (ISDN). Signalling System No.7 (SS7). ISDN User Part (ISUP) version 4 for the international interface. Part 18: Completion of Calls to Busy Subscriber (CCBS) supplementary service [ITU-T Recommendation Q.733, clause 3 (1997) modified]
Standard published on 1.5.2002
Selected format:Integrated Services Digital Network (ISDN). Signalling System No.7. ISDN User Part (ISUP) version 2 for the international interface. Part 19: Three-Party (3PTY) supplementary service
Standard published on 1.8.1998
Selected format:Integrated Services Digital Network (ISDN). Signalling System No.7. ISDN User Part (ISUP) version 3 for the international interface. Part 19: Three-Party (3PTY) supplementary service [ITU-T Recommendation Q.734, clause 2 (1996), modified]
Standard published on 1.4.2002
Selected format:Integrated Services Digital Network (ISDN). Signalling System No.7 (SS7). ISDN User Part (ISUP) version 4 for the international interface. Part 19: Three-Party (3PTY) supplementary service [ITU-T Recommendation Q.734, clause 2 (1996) and implementors guide (1998) modified]
Standard published on 1.5.2002
Selected format:Integrated Services Digital Network (ISDN). Signalling System No.7. ISDN User Part (ISUP) version 2 for the international interface. Part 19: Three-Party (3PTY) supplementary service
Change published on 1.8.1998
Selected format:Integrated Services Digital Network (ISDN). Signalling System No.7. ISDN User Part (ISUP) version 3 for the international interface. Part 20: Completion of Calls on No Reply (CCNR) supplementary service
Standard published on 1.7.2002
Selected format:Latest update: 2026-01-19 (Number of items: 2 257 233)
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