Integrated Services Digital Network (ISDN) - Outgoing Call Barring-User Controlled (OCB-UC) supplementary service - Service description (Endorsement of the English version EN 301084 V 2.1.1 (2000-07) as German standard)
Edition 2002-07

Integrated Services Digital Network (ISDN) - Outgoing Call Barring-Fixed (OCB-F) supplementary service - Service description (Endorsement of the English version EN 301082 V 2.1.1 (2000-07) as German standard)
Edition 2002-07

V interfaces at the digital Service Node (SN) - Interfaces at the VB5.1 reference point for the support of broadband or combined narrowband and broadband Access Networks (ANs) - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsement of the English version EN 301005-2 V 1.1.5 (1998-09) as German Standard)
Edition 2000-02

V interfaces at the digital Service Node (SN) - Interfaces at the VB5.1 reference point for the support of broadband or combined narrowband and broadband Access Networks (ANs) - Part 1: Interface specification (Endorsement of the English version EN 301005-1 V 1.1.4 (1998-05) as German Standard)
Edition 2000-02

V interfaces at the digital Local Exchange (LE) - V5.2 interface for the support of Access Network (AN) - Part 7: Test Suite Structure and Test Purposes (TSS&TP) specification for the data link layer (Endorsement of the English version ETS 300347-7:1999 as German standard)
Edition 2000-10

Frame relay services - Part 4: Broadband Integrated Services Digital Network (B-ISDN); frame relay bearer service; service definition (Endorsement of the English version ETS 300399-4:1998 as German Standard)
Edition 2000-06

Integrated Services Digital Network (ISDN) - Narrowband Multi-service Delivery System (NMDS) - Part 1: NMDS interface specification (Endorsement of the English version EN 301141-1 V 2.1.1 (2000-11) as German standard)
Edition 2001-05

Integrated Services Digital Network (ISDN) - Narrowband Multi-service Delivery System (NMDS) - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsement of the English version EN 301141-2 V 1.3.1 (2001-06) as German Standard)
Edition 2002-03

V interfaces at the digital Service Node (SN) - Interfaces at the VB5.2 reference point for the support of broadband or combined narrowband and broadband Access Networks (ANs) - Part 3: Test Suite Structure and Test Purposes (TSS&TPP) (Endorsement of the English version EN 301217-3 V 1.1.1 (2001-01) as German Standard)
Edition 2001-09

Telecommunications Management Network (TMN) - Management interfaces associated with the VB5.2 reference point (Endorsement of the English version EN 301754 V 1.1.1 (2001-09) as German Standard)
Edition 2002-11