Terminal Equipment (TE); syntax-based videotex lower layer protocols using packet mode access over the Public Switched Telephone Network (PSTN); English version ETS 300221:1993
Edition 1994-01

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) - Mobile Station - Base Station System (MS-BSS) interface - General aspects and principles; English version ETS 300550:1994
Edition 1995-01

Frame relay services - Part 2: Integrated Services Digital Network (ISDN); frame relay bearer service; service definition; English version ETS 300399-2:1995
Edition 1995-10

Integrated Services Digital Network (ISDN); syntax-based videotex lower layers protocols for ISDN packet mode (CCITT Recommendation X.31 case A and case B); English version ETS 300218:1993
Edition 1994-01

Radio Equipment and Systems (RES) - Digital Enhanced Cordless Telecommunications/Global System for Mobile communications (DECT/GSM) interworking profile - Mobile services Switching Centre (MSC); Fixed Part (FP) interconnection; English version ETS 300499:1996
Edition 1998-06

European digital cellular telecommunications system (Phase 2) - Part 1: Base Station System-Mobile-services Switching Centre (BSS-MSC) interface; general aspects; English version ETS 300587-1:1994
Edition 1995-01

European digital cellular telecommunications system (Phase 2) - GSM Public Land Mobile Network (PLMN) access reference configuration; English version ETS 300551:1994
Edition 1995-01

Private Integrated Services Network (PISN) - Profile Standard for the connection of Radio Paging Equipment (RPE) to a PISN; English version ETS 300739:1996
Edition 1997-11

Integrated Services Digital Network (ISDN); circuit mode structured bearer service category usable for speech information transfer; terminal requirements necessary for end-to-end compatibility; English version ETS 300083:1993
Edition 1993-11