Integrated Services Digital Network (ISDN); support of packet-mode terminal equipment by an ISDN; english version ETS 300007:1991
Edition 1992-11

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Data link layer - Part 5: Protocol Implementation Conformance Statement (PICS) proforma specification for the frame relay protocol; English version ETS 300402-5:1996
Edition 1997-04

Integrated Services Digital Network (ISDN); support of CCITT recommendation X.21, X.21bis and X.20bis based Data Terminal Equipments (DTEs) by an ISDN; synchronous and asynchronous terminal adaption functions; english version ETS 300103:1990
Edition 1992-02

Integrated Services Digital Network (ISDN); 3,1 kHz telephony teleservice; end-to-end compatibility requirements for telephony terminals; english version ETS 300082:1992
Edition 1992-06

Integrated Services Digital Network (ISDN) - ISDN Packet Mode Bearer Services (PMBS) - ISDN Virtual Call (VC) and Permanent Virtual Call (PVC) bearer services provided by the D-channel of the user access; basic and primary rate; English version ETS 300049:1997
Edition 1998-08

Integrated Sevices Digital Network (ISDN); 3,1 kHz telephony teleservice; attachment requirements for handset terminals; english version ETS 300085:1990
Edition 1992-02

Integrated Services Digital Network (ISDN); user-network interface data link layer specification; application of CCITT recommendations Q.920/I.440 and Q.921/I.441; english version ETS 300125:1991
Edition 1992-05

Electromagnetic compatibility and Radio spectrum Matters (ERM) - Enhanced Radio MEssage System (ERMES) - Part 3: Network aspects; English version ETS 300133-3:1997
Edition 1998-12

Intelligent Network (IN) - Intelligent Network Capability Set 1 (CS1), Core Intelligent Network Application Protocol (INAP) - Part 1: Protocol specification; English Version ETS 300374-1:1994
Edition 1995-04