Attachements to the Public Switched Telephone Network (PSTN) - General technical requirements for equipment connected to an analogue subscriber interface in the PSTN (Endorsement of the English version EN 300001 V 1.5.1 (1998-10) as German Standard)
Edition 2000-09

Digital Video Broadcasting (DVB) - DVB interaction channel for cable TV distribution systems (CATV) (Endorsement of the English version ETS 300800:1998 as German standard)
Edition 2000-04

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 4: Gateways basic operation; Sub-part 3: Data networks gateway (Endorsement of the English version ETS 300392-4-3:1999 as German standard)
Edition 2000-05

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

Intelligent Network (IN) - Intelligent Network Capability Set 1 (CS1); Core Intelligent Network Application Protocol (INAP) - Part 6: Protocol Implementation Conformance Statement (PICS) proforma specification for Service Control Function (SCF); Service Data Function (SDF) interface (Endorsement of the English version ETS 300374-6:1998-09 as German Standard)
Edition 2001-09

Communication systems for meters - Part 1: Data exchange; German version EN 13757-1:2021
Edition 2022-10

Cordless Terminal Mobility (CTM) - Phase 2 - Service description (Endorsement of the English version EN 301273 V 1.1.3 (2000-01) as German standard)
Edition 2000-10

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 3: Test Suite Structure and Test Purposes (TSS&TP) specification (Endorsement of the English version EN 301005-3 V 1.1.2 (2000-05) as German Standard)
Edition 2000-10

Integrated Services Digital Network (ISDN) - Narrowband Multi-service Delivery System (NMDS) - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the data link layer (NTN side) (Endorsement of the English version EN 301141-3 V 1.1.1 (2002-02) as German Standard)
Edition 2002-11

Universal Personal Telecommunication (UPT) - UPT phase 2 - Functional specification of the interface of a UPT Integrated Circuit Card (ICC) and Card Accepting Devices (CADs); UPT card accepting Dual Tone Multiple Frequency (DTMF) device; Conformance test specification (Endorsement of the English version EN 301366 V 1.1.2 (1999-05) as German Standard)
Edition 2001-08