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

Services and Protocols for Advanced Networks (SPAN) - Anonymous Call Rejection (ACR) supplementary service - Service description (Endorsement of the English version EN 301798 V 1.1.1 (2000-10) as German Standard)
Edition 2001-10

Integrated Services Digital Network (ISDN) - Remote Control (RC) service - Service description (Endorsement of the English version EN 301691 V 1.1.1 (2001-02) as German Standard)
Edition 2001-10

Integrated Services Digital Network (ISDN) - Line Hunting (LH) supplementary service - Service description (Endorsement of the English version EN 301479 V 1.1.2 (2000-08) as German Standard)
Edition 2001-10

Integrated Services Digital Network (ISDN) - Calling Line Identification Restriction (CLIR) supplementary service - Service description (Endorsement of the English version EN 300090 V 1.2.1 (2000-12) as German Standard)
Edition 2001-10

Integrated Services Digital Network (ISDN) - Calling Line Identification Presentation (CLIP) supplementary service - Service description (Endorsement of the English version EN 300089 V 3.1.1 (2000-12) as German Standard)
Edition 2001-10

Private Integrated Services Network (PISN) - Profile Standard for the Use of PSS1 (QSIG) in Air Traffic Services Networks (Endorsement of the English version EN 301846 V 1.1.1 (2001-07) as German Standard)
Edition 2001-12

Telecommunications Management Network (TMN) - Performance monitoring for Plesiochronous Digital Hierarchy (PDH) interfaces - Information model for the Network Element (NE) view (Endorsement of the English version EN 301384 V 1.1.2 (2001-02) as German standard)
Edition 2001-12

Telecommunications Management Network (TMN) - Plesiochronous Digital Hierarchy (PDH) information model for the Network Element (NE) view (Endorsement of the English version EN 300371 V 1.3.2 (2001-02) as German standard)
Edition 2001-12

Integrated Services Digital Network (ISDN) - Definition and usage of cause and location in Digital Subscriber Signalling System No. one (DSS1) and Signalling System No. 7 (SS7) ISDN User Part (ISUP) (ITU-T Recommendation Q.850 (1998) with addendum, modified) (Endorsement of the English version EN 300485 V 1.3.1 (2001-04) as German standard)
Edition 2001-12