Integrated Services Digital Network (ISDN) - Basic User Network Interface (UNI) - Part 1: Layer 1 specification (Endorsement of the English version EN 300012-1 V 1.2.2. (2000-05) as German standard)
Edition 2001-05

Integrated Services Digital Network (ISDN) - Basic User Network Interface (UNI) - Part 4: Conformance test specification for interface IA (Endorsement of the English version ETS 300012-4:1998 as German Standard)
Edition 2000-02

Integrated Services Digital Network (ISDN) - Basic User Network Interface (UNI) - Part 5: Conformance test specification for interface IB (Endorsement of the English version ETS 300012-5:1998 as German Standard)
Edition 2000-02

Integrated Services Digital Network (ISDN) - Basic User Network Interface (UNI) - Part 3: Implementation Conformance Statement (ICS) and Implementation eXtra Information for Testing (IXIT) specification for interface IB (Endorsement of the English version ETS 300012-3:1998 as German Standard)
Edition 2000-02

Integrated Services Digital Network (ISDN) - Basic User Network Interface (UNI) - Part 6: Abstract Test Suite (ATS) specification for interface IA (Endorsement of the English version ETS 300012-6:1998 as German Standard)
Edition 2000-02

Integrated Services Digital Network (ISDN) - Basic User Network Interface (UNI) - Part 7: Abstract Test Suite (ATS) specification for interface IB (Endorsement of the English version ETS 300012-7:1998 as German Standard)
Edition 2000-02

Integrated Services Digital Network (ISDN) - Basic User Network Interface (UNI) - Part 2: Implementation Conformance Statement (ICS) and Implementation eXtra Information for Testing (IXIT) specification for interface IA (Endorsement of the English version ETS 300012-2:1998 as German Standard)
Edition 2000-02

Integrated Services Digital Network (ISDN) - Primary rate User-Network Interface (UNI) - Part 2: Conformance test specification for interface IA and IB; English version ETS 300011-2:1998
Edition 1998-12

Broadband Integrated Services Digital Network (B-ISDN); signalling ATM Adaptation Layer (SAAL); service Specific Co-ordination Function (SSCF) for support of signalling at the User-Network Interface (UNI) - Part 1: Specification of SSCF at UNI (ITU-T Q.2130 (1995), modified); English version ETS 300437-1:1995
Edition 1996-06

Integrated Services Digital Network (ISDN) - Primary rate User Network Interface (UNI) - Part 1: Layer 1 specification (Endorsement of the English version EN 300011-1 V 1.2.2. (2000-05) as German standard)
Edition 2001-05