Network Aspects (NA) - Support of existing services with guaranteed constant bit rate and specified transfer delay on Metropolitan Area Network (MAN); English version ETS 300278:1994
Edition 1994-10

Electromagnetic compatibility and Radio spectrum Matters (ERM) - Terrestrial Flight Telecommunications System (TFTS) - Part 3: Speech services, radio interface (Endorsement of the English version ETS 300326-3:1998-08 as German standard)
Edition 2001-02

Integrated Services Digital Network (ISDN) - Interworking between public ISDNs and private ISDNs for the provision of telecommunication services - General aspects; English version ETS 300345:1995
Edition 1995-08

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Data link layer - Part 1: General aspects [ITU-T Q.920 (1993), modified]; English version ETS 300402-1:1995
Edition 1996-06

Network Aspects (NA) - Metropolitan Area Network (MAN) - Interconnection of MAN Switching Systems (MSS) based on an Asynchronous Transfer Mode (ATM) interface; English version ETS 300405:1995
Edition 1995-11

Digital cellular telecommunications system (Phase 2) - Security aspects (Endorsement of the English version ETS 300506:2000-08 as German standard)
Edition 2001-04

Digital cellular telecommunications system (Phase 2) - Transmission planning aspects of the speech service in the GSM Public Land Mobile Network (PLMN) system (Endorsement of the English version ETS 300540:1999-07 as German standard)
Edition 2001-04

European digital cellular telecommunications system - Half rate speech - Part 4: Comfort noise aspects for the half rate speech traffic channel; English version ETS 300581-4:1995
Edition 1996-07

Digital cellular telecommunications system (Phase 2) - Network Management (NM) - Part 2: Common aspects of GSM/DCS1800 Network Management; English version ETS 300612-2:1996
Edition 1997-07

Integrated Services Digital Network (ISDN) - Overall network aspects and functions - Frame Relaying Service Specific Convergence Sublayer (FR-SSCS) (ITU-T I.365.1:1993); English version ETS 300643:1996
Edition 1996-12