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) - 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 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 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) - ISDN Packet Mode Bearer Services (PMBS) - ISDN Virtual Call (VC) and Permanent Virtual Call (PVC) bearer services provided by the B-channel of the user access, basic and primary rate; English version ETS 300048:1997
Edition 1998-08

Integrated Services Digital Network (ISDN) - ISDN Packet Mode Bearer Services (PMBS) - ISDN Virtual Call (VC) and Permanent Virtual Call (PVC) bearer services provided by the D-channel of the user access; basic and primary rate; English version ETS 300049:1997
Edition 1998-08

Integrated Services Digital Network (ISDN); syntax-based videotex end-to-end protocols; circuit mode DTE-DTE; english version ETS 300079:1991
Edition 1992-09

Integrated Services Digital Network (ISDN); user-network interface layer 3; specification for basic call control; english version ETS 300102-1:1990
Edition 1992-02