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

European digital cellular telecommunications system (Phase 2) - Data Link (DL) layer - General aspects; English version ETS 300554:1994
Edition 1995-01

Network Aspects (NA); Metropolitan Area Network (MAN); physical layer convergence procedure for 2,048 Mbit/s; English version ETS 300213:1992
Edition 1993-07

Network Aspects (NA); Metropolitan Area Network (MAN); media access control layer and physical layer specification; English version ETS 300212:1992
Edition 1993-07

Signalling Protocols and Switching (SPS) - V interfaces at the digital Local Exchange (LE) - V5.2 interface for the support of Access Network (AN) - Part 9: Test specification for the physical layer; English version ETS 300347-9:1996
Edition 1996-09

Videotex presentation layer data syntax transparent data (CEPT-recommendation T/TE 06-03, Edinburgh 1988); english version ETS 300074:1990
Edition 1992-02

European digital cellular telecommunications system (Phase 2) - Mobile Station - Base Station System (MS-BSS) interface - General aspects and principles; English version ETS 300550:1994
Edition 1995-01

Network Aspects (NA) - Metropolitan Area Network (MAN) - Conformance specification for the Medium Access Control (MAC) layer management; English version ETS 300274:1994
Edition 1994-10

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

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