Telecommunications security - Integrated Services Digital Network (ISDN) - Encryption key management and authentication system for audiovisual services (Endorsement of the English version ETS 300841:1998 as German standard)
Edition 1999-06

Integrated Services Digital Network (ISDN) - Telephony 7 kHz teleservice - Service description; English version ETS 300263:1994/A1:1996
Edition 1996-10

Digital Enhanced Cordless Telecommunications (DECT) - 3 Volt-DECT Authentication Module (DAM); English version ETS 300825:1997
Edition 1998-07

Broadband Integrated Services Digital Network (B-ISDN) - Signalling ATM Adaptation Layer (SAAL); Service Specific Co-ordination Function (SSCF) for support of signalling at the Network Node Interface (NNI) - Part 1: Specification of SSCF at NNI (ITU-T Q.2140 (1995), modified); English version ETS 300438-1:1995
Edition 1996-07

Broadband Integrated Services Digital Network (B-ISDN); signalling ATM Adaptation Layer (SAAL); service Specific Co-ordination Function (SSCF) for support of signalling at the User-Network Interface (UNI) - Part 1: Specification of SSCF at UNI (ITU-T Q.2130 (1995), modified); English version ETS 300437-1:1995
Edition 1996-06

European digital cellular telecommunications system (Phase 2) - Discontinuous Reception (DRX) in the GSM system; English version ETS 300531:1994
Edition 1995-01

Integrated Services Digital Network (ISDN); Multiple Subscriber Number (MSN) supplementary service; service description; english version ETS 300050:1991
Edition 1992-09

Integrated Services Digital Network (ISDN); Subaddressing (SUB) supplementary service; service description; english version ETS 300059:1991
Edition 1992-09

European digital cellular telecommunications system (Phase 2) - Alphabets and language-specific information; English version ETS 300628:1994
Edition 1995-03

European digital cellular telecommunications system (phase 2) - Advice of Charge (AoC) supplementary services, stage 3; English version ETS 300570:1995
Edition 1995-08