Human Factors (HF) - Human factors requirements for a European Telephony Numbering Space (ETNS) (Endorsement of the English version EN 301104 V 1.1.1 (1998-10) as German standard)
Edition 2000-04

Terminal Equipment (TE) - Integrated Services Digital Network (ISDN) - B-Channel Aggregation Unit (CAU); procedures and terminal requirements (Endorsement of the English version EN 300481 V 1.2.2 (1997-12) as German standard)
Edition 2000-04

Transmission and multiplexing (TM) - Optical interfaces for equipments and systems relating to the synchronous digital hierarchy (SDH) [ITU-T Recommendation G.957 (1995) modified] (Endorsement of the English version ETS 300232:1993 + A1:1996 as German standard)
Edition 2000-06

Integrated Services Digital Network (ISDN) - Explicit Call Transfer (ECT) supplementary service - Service description (Endorsement of the English version EN 300367 V 1.2.1 (1998-10) as German standard)
Edition 2000-09

Integrated Services Digital Network (ISDN) - Security tools (SET) for use within telecommunication services (Endorsement of the English version EN 301132 V 1.1.1 (1998-10) as German standard)
Edition 2000-09

Integrated Services Digital Network (ISDN) - Completion of Calls on No Reply (CCNR) supplementary service - Service description (Endorsement of the English version EN 301134 V 1.1.1 (1998-10) as German standard)
Edition 2000-09

Cordless Terminal Mobility (CTM) - Phase 1 - Service description (Endorsement of the English version EN 301175 V 1.1.1 (1998-08) as German Standard)
Edition 2000-09

Satellite Earth Stations and Systems (SES) - Satellite User Terminals (SUT) using satellites in geostationary orbit operating in the 19,7 GHz to 20,2 GHz (space-to-earth) and 29,5 GHz to 30 GHz (earth-to-space) frequency bands (Endorsement of the English version EN 301358 V 1.1.1 (1999-04) as German standard)
Edition 2000-04

Transmission and Multiplexing (TM) - Digital Radio Relay Systems (DRRS) - Synchronous Digital Hierarchy (SDH); system performance monitoring parameters of SDH DRRS (Endorsement of the English version EN 301129 V 1.1.2 (1999-05) as German standard)
Edition 2000-04

Satellite Earth Stations and Systems (SES) - Mobile Earth Stations (MES) providing Low Bit Rate Data Communications (LBRDC) using Low Earth Orbiting (LEO) satellites operating below 1 GHz (Endorsement of the English version EN 300721 V 1.2.2 (1999-07) as German standard)
Edition 2000-04