DIN EN 300356-2:2000-09

Integrated Services Digital Network (ISDN); Signalling System No. 7 (SS7); ISDN User Part (ISUP) version 4 for the international interface - Part 2: ISDN supplementary service (ITU-T Recommendation Q.730 (1999), modified) (Endorsement of the English version EN 300356-2 V 4.2.1 (2002-07) as German standard).

Integrated Services Digital Network (ISDN) - Signalling System No. 7; ISDN User Part (ISUP) version 4 for the international interface - Part 2: ISDN supplementary services (ITU-T Recommendation Q.730 (1999), modified) (Endorsement of the English version EN 300356-2 V 4.1.2 (2001-07) as German standard).

Integrated Services Digital Network (ISDN) - Signalling System No. 7; ISDN User Part (ISUP) version 2 for the international interface - Part 3: ISDN supplementary services [ITU-T Recommandation Q.730 (1997), modified] (Endorsement of the English version EN 300356-2 V 3.2.2 (1998-08) as German standard)