Private Integrated Services Network (PISN) - Addressing (ISO/IEC 11571:1998, modified) (Endorsement of the English version EN 300189 V 1.2.1(1999-11) as German standard)
Edition 2000-10

Private Integrated Services Network (PISN) - Specification, functional models and information flows - Common information Additional Network Feature (ANF) (ISO/IEC 15771 (1998), modified) (Endorsement of the English version EN 301819 V 1.1.1 (2000-10) as German standard)
Edition 2001-06

Private Integrated Services Network (PISN) - Functional requirements for static circuit-mode inter-PINX connections (ISO/IEC 14474 (1998), modified) (Endorsement of the English version EN 301765 V 1.1.1 (2000-08) as German standard)
Edition 2001-06

Broadband Private Integrated Services Networks (B-PISNs) - Inter-exchange signalling protocol - Separated Bearer Control (SBC) (Endorsement of the English version EN 301776 V 1.1.1 (2000-08) as German Standard)
Edition 2001-12

Corporate telecommunication Networks (CN) - Signalling interworking between QSIG and H.323 - Call Diversion supplementary services (ISO/IEC 21411 (2001), modified) (Endorsement of the English version EN 301906 V 1.1.1 (2003-02) as German standard)
Edition 2003-07

Private Integrated Services Network (PISN) - Mapping functions for the employment of 64 kbit/s circuit mode connections with 8 kbit/s sub-multiplexing (ISO/IEC 17311 (2002), modified) (Endorsement of the English version EN 301924 V 1.1.1 (2002-09) as German standard)
Edition 2003-07

Corporate telecommunication Networks (CN) - Signalling interworking between QSIG and H.323 - Basic services (Endorsement of ISO/IEC 23289 (2002), modified) (Endorsement of the English version EN 302036 V 1.1.1 (2003-05) as German standard)
Edition 2003-12

Private Integrated Services Network (PISN) - Mapping functions for the tunnelling of QSIG through H.323 networks (Endorsement of ISO/IEC 23290 (2002), modified) (Endorsement of the English version EN 302037 V 1.1.1 (2003-05) as German standard)
Edition 2003-12

Private Integrated Services Network (PISN) - Specification, functional model and information flows - Name identification supplementary services [ISO/IEC 13864 (1995) modified] (Endorsement of the English version EN 300237 V1.3.1 (2003-06) as German standard)
Edition 2004-03

Private Integrated Services Network (PISN) - Specification, functional model and information flows - Call offer supplementary service [ISO/IEC 14841 (1996) modified] (Endorsement of the English version EN 300361 V1.3.1 (2003-06) as German standard)
Edition 2004-03