Frame relay services - Part 3: Frame relay data transmission service; service definition; English version ETS 300399-3:1995
Edition 1995-10

European digital cellular telecommunications system (Phase 2) - Base Station Controller - Base Transceiver Station (BSC-BTS) interface - Layer 2 specification; English version ETS 300595:1994
Edition 1995-02

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 1: General aspects [ITU-T Q.920 (1993), modified]; English version ETS 300402-1:1995
Edition 1996-06

Network Aspects (NA); Connectionless Broadband Data Service (CBDS); part 2: basic bearer service definition; English version ETS 300217-2:1992
Edition 1993-07

Integrated Services Digital Network (ISDN) - Synchronization and Co-ordination Function (SCF) for the provision of the OSI Connection-mode Network Service (OSI CONS) in an ISDN environment - Specification of SCF (ITU-T Recommendation Q.923 (1995), modified); English version ETS 300660:1996
Edition 1997-04

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

Network Aspects (NA); connectionless broadband data service (CBDS); part 1: overview; English version ETS 300217-1:1992
Edition 1993-07

Private Telecommunication Network (PTN); signalling protocol at the S-reference point; circuit mode basic services; English version ETS 300192:1992
Edition 1993-09

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Data link layer - Part 2: General protocol specification [ITU-T Q.921 (1993), modified]; English version ETS 300402-2:1995
Edition 1996-06