Integrated Services Digital Network (ISDN); Direct Dialling In (DDI) supplementary service; functional capabilities and information flows; english version ETS 300063:1991
Edition 1992-09

Integrated Services Digital Network (ISDN); circuit mode structured bearer service category usable for 3,1 kHz audio information transfer; terminal requirements necessary for end-to-end compatibility; English version ETS 300084:1993
Edition 1993-11

Network aspects (NA); accessibility for 64 kbit/s circuit switched international end-to-end ISDN traffic relations; English version ETS 300251:1993
Edition 1994-04

Network Aspects (NA) - Metropolitan Area Network (MAN) - Physical Layer Convergence Procedure (PLCP) for 155,520 Mbit/s; CCITT Recommendations G.707, G.708 and G.709; SDH based systems; Protocol Implementation Conformance Statement (PICS); English version ETS 300272:1994
Edition 1994-10

Network Aspects (NA); Metropolitan Area Network (MAN) - Physical Layer Convergence Procedure (PLCP) for 622,080 Mbit/s; CCITT Recommendations G.707, G.708 and G.709; SDH based systems; Protocol Implementation Conformance Statement (PICS); English version ETS 300277:1994
Edition 1994-10

Network Aspects (NA) - Metropolitan Area Network (MAN) - Physical Layer Convergence Procedure (PLCP) for 2,048 Mbit/s - Protocol Implementation Conformance Statement (PICS); English version ETS 300269:1994
Edition 1994-10

Network Aspects (NA) - Metropolitan Area Network (MAN) - Physical Layer Convergence Procedure (PLCP) for 34,368 Mbit/s - Protocol Implementation Conformance Statement (PICS); English version ETS 300270:1994
Edition 1994-10

Network Aspects (NA) - Metropolitan Area Network (MAN) - Physical Layer Convergence Procedure (PLCP) for 139,264 Mbit/s - Protocol Implementation Conformance Statement (PICS); English version ETS 300271:1994
Edition 1994-10

European digital cellular telecommunications system (Phase 2) - Operator determined barring; English version ETS 300513:1994
Edition 1995-01

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