Integrated Services Digital Network (ISDN);Signalling System No.7;ISDN User Part (ISUP) version 2 for the international interface;Part 14: Explicit Call Transfer (ECT) supplementary service (Endorsed by Asociación Espanola de Normalización in June of 2022.)

Die Norm herausgegeben am 1.6.2022

Integrated Services Digital Network (ISDN); Signalling System No.7; ISDN User Part (ISUP) version 3 for the international interface; Part 14: Explicit Call Transfer (ECT) supplementary service [ITU-T Recommendation Q.732, clause 7 (1996), modified] (Endorsed by AENOR in December of 2004.)

Die Norm herausgegeben am 1.12.2004

Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 14: Explicit Call Transfer (ECT) supplementary service [ITU-T Recommendation Q.732, clause 7 (1996) and implementors guide (1998) modified] (Endorsed by AENOR in February of 2004.)

Die Norm herausgegeben am 1.2.2004

Integrated Services Digital Network (ISDN);Signalling System No.7;ISDN User Part (ISUP) version 2 for the international interface;Part 15: Diversion supplementary services [ITU-T Recommendation Q.732, clauses 2 to 5 (1993), modified] (Endorsed by Asociación Espanola de Normalización in June of 2022.)

Die Norm herausgegeben am 1.6.2022

Integrated Services Digital Network (ISDN); Signalling System No.7; ISDN User Part (ISUP) version 3 for the international interface; Part 15: Diversion supplementary services [ITU-T Recommendation Q.732, clauses 2 to 5 (1997), modified] (Endorsed by AENOR in December of 2004.)

Die Norm herausgegeben am 1.12.2004

Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 15: Diversion supplementary service [ITU-T Recommendation Q.732, clauses 2 to 5 (1999) modified] (Endorsed by AENOR in February of 2004.)

Die Norm herausgegeben am 1.2.2004

Integrated Services Digital Network (ISDN);Signalling System No.7;ISDN User Part (ISUP) version 2 for the international interface;Part 16: Call Hold (HOLD) supplementary service [ITU-T Recommendation Q.733, clause 2 (1993), modified] (Endorsed by Asociación Espanola de Normalización in June of 2022.)

Die Norm herausgegeben am 1.6.2022

Integrated Services Digital Network (ISDN); Signalling System No.7; ISDN User Part (ISUP) version 3 for the international interface; Part 16: Call Hold (HOLD) supplementary service [ITU-T Recommendation Q.733, clause 2 (1993), modified] (Endorsed by AENOR in December of 2004.)

Die Norm herausgegeben am 1.12.2004

Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 16: Call Hold (HOLD) supplementary service [ITU-T Recommendation Q.733, clause 2 (1993) modified] (Endorsed by AENOR in March of 2004.)

Die Norm herausgegeben am 1.3.2004

Integrated Services Digital Network (ISDN);Signalling System No.7;ISDN User Part (ISUP) version 2 for the international interface;Part 17: Call Waiting (CW) supplementary service [ITU-T Recommendation Q.733, section 1 (1992), modified] (Endorsed by Asociación Espanola de Normalización in June of 2022.)

Die Norm herausgegeben am 1.6.2022