European digital cellular telecommunications system (Phase 2) - Mobile Station - Base Station System (MS-BSS) interface - Channel structures and access capabilities; English version ETS 300552:1994
Edition 1995-01

European digital cellular telecommunications system (Phase 2) - Application of the Base Station System Application Part (BSSAP) on the E-interface; English version ETS 300626:1995
Edition 1996-02

Broadband Integrated Services Digital Network (B-ISDN) - Usage of cause and location in Digital Subscriber Signalling System No. two (DSS2) and Signalling System No. 7 B-ISDN User Part (B-ISUP) (ITU-T Recommendation Q.2610 (1995), modified); English version ETS 300685:1997
Edition 1997-11

European digital cellular telecommunications system (Phase 2) - Discontinuous Reception (DRX) in the GSM system; English version ETS 300531:1994
Edition 1995-01

Broadband Integrated Services Digital Network (B-ISDN) - Signalling system No. 7 - Interworking between Broadband ISDN User Part (B-ISUP) and Digital Subscriber Signalling system No. 2 (DSS2) (ITU-T Q.2650:1995, modified); English version ETS 300495:1997
Edition 1998-02

Integrated Services Digital Network (ISDN) - Specification of the Remote Frame Handler Interface (RFHI); English version ETS 300458:1995
Edition 1996-04

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

Frame relay services - Part 1: General description; English version ETS 300399-1:1995
Edition 1995-11

Digital cellular telecommunications system (Phase 2) - Network Management (NM) - Part 2: Common aspects of GSM/DCS1800 Network Management; English version ETS 300612-2:1996
Edition 1997-07

Radio Equipment and Systems (RES) - Terrestrial Flight Telephone System (TFTS) - Packet mode data; English version ETS 300752:1997
Edition 1998-07