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

Terminal Equipment (TE); international videotex interworking between gateways; english version ETS 300107:1991
Edition 1992-09

Attachment requirements for Data Terminal Equipment (DTE) to connect to Packet Switched Public Data Networks (PSPDN) using CCITT recommendation X.25 (1984) interface; requirements applicable to DTEs subscribing to Multilink operation; english version ETS 300124:1991
Edition 1992-08

Integrated Services Digital Network (ISDN); circuit-mode 64 kbit/s unrestricted 8 kHz structured bearer service category; service description; english version ETS 300108:1992
Edition 1993-04

Integrated Services Digital Network (ISDN); circuit-mode 64 kbit/s 8 kHz structured bearer service category usable for speech information transfer; service description; english version ETS 300109:1992
Edition 1993-04

Integrated Services Digital Network (ISDN); circuit-mode 64 kbit/s 8 kHz structured bearer service category usable for 3,1 kHz audio information transfer; service description; english version ETS 300110:1992
Edition 1993-04

Integrated Services Digital Network (ISDN); Malicious Call Identification (MCID) supplementary service; serving description; english version ETS 300128:1992
Edition 1992-12

Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; service description; english version ETS 300139:1992
Edition 1992-12

Integrated Services Digital Network (ISDN); syntax-based videotex teleservice; service description; English version ETS 300262:1993
Edition 1994-05

Integrated Services Digital Network (ISDN) - Videotelephony teleservice - Functional capabilities and information flows; English version ETS 300266:1994
Edition 1994-10