Public Switched Telephone Network (PSTN) - Calling Line Identification Restriction (CLIR) supplementary service - Service description; English version ETS 300649:1997
Edition 1997-12

Broadband Integrated Services Digital Network (B-ISDN) - Signalling system No. 7 - Interworking between Broadband ISDN User Part (B-ISUP) and narrowband ISDN User Part (ISUP) (ITU-T Q.2660:1995, modified); English version ETS 300496:1997
Edition 1998-02

Broadband Integrated Services Digital Network (B-ISDN) - Signalling System No. 7 - B-ISDN User Part (B-ISUP) Capability Set 1 (CS1) - Supplementary services (ITU-T Q.2730:1995, modified); English version ETS 300657:1997
Edition 1998-02

Human Factors (HF) - Telephone Prepayment Cards - Tactile Identifier; English version ETS 300767:1997
Edition 1998-05

Satellite Earth Stations and Systems (SES) - Receive-only Very Small Aperture Terminals (VSATs) operating in the 4 GHz frequency band; English version ETS 300333:1997
Edition 1998-05

Telecommunications Security - Service access control and synchronization for audiovisual services; English version ETS 300747:1997
Edition 1998-08

Universal Personal Telecommunication (UPT) - Specification of the security architecture for UPT phase 1 - Part 2: Implementation Conformance Statement (ICS) proformas; English Version ETS 300391-2:1995
Edition 1996-02

Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber Signalling System No. two (DSS2) protocol; Supplementary service interactions - Part 1: Protocol specification; English version ETS 300669-1:1996
Edition 1997-09

Transmission and Multiplexing (TM) - Digitale Radio Relay Systems (DRRS) - Part 1: Antennas for point-to-point (P-P) radio links in the 1 GHz to 3 GHz bands; English version EN 300631-1 V 1.1.1:1997-11
Edition 1998-09

Telephony for hearing impaired people - Inductive coupling of telephone earphones to hearing aids; English version ETS 300381:1994
Edition 1995-09