Integrated Services Digital Network (ISDN) - Access digital section for ISDN basic access; English version ETS 300297:1995
Edition 1995-12

Integrated Services Digital Network (ISDN) - Access digital section for ISDN basic rate; English version ETS 300297:1995/A1:1996
Edition 1996-10

Broadband Integrated Services Digital Network (B-ISDN) - Synchronous Digital Hierarchy (SDH) based user network access - Physical Layer User Network Interface (UNI) for 155520 kbit/s and 622080 kbit/s Asynchronous Transfer Mode (ATM) B-ISDN applications; English version ETS 300300:1997
Edition 1998-02

Integrated Services Digital Network (ISDN) - Basic call control procedures for circuit-switched bearer services - Functional capabilities and information flows [ITU-T Recommendation Q.71 (1993), modified]; English version ETS 300350:1995
Edition 1995-11

Private Telecommunications Network (PTN) - Method for the specification of basic and supplementary services; English version ETS 300387:1994
Edition 1994-11

Integrated Services Digital Network (ISDN) - File Transfer Access and Management (FTAM) over ISDN based on simple file transfer profile; English version ETS 300388:1995
Edition 1995-08

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 4: Gateways basic operation; Sub-part 1: Public Switched Telephone Network (PSTN) (Endorsement of the English version ETS 300392-4-1:1999 as German standard)
Edition 1999-12

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 4: Gateways basic operation; Sub-part 4-2: Integrated Services Digital Network (ISDN) gateway (Endorsement of the English version ETS 300392-4-2:2000-09 as German Standard)
Edition 2001-07

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) - Digital Subscriber Signalling System No. one (DSS1) protocol - Signalling network layer for circuit-mode basic call control - Part 4: Test Suite Structure and Test Purposes (TSS&TP) specification for the user; English version ETS 300403-4:1997
Edition 1997-11