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

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 Link Access Procedure Balanced (LAPB) extended (modulo 128) operation; english version ETS 300123:1991
Edition 1992-08

Integrated Services Digital Network (ISDN); Subaddressing (SUB) supplementary service; functional capabilities and information flows; english version ETS 300060:1991
Edition 1992-09

Integrated Services Digital Network (ISDN); Multiple Subscriber Number (MSN) supplementary service; functional capabilities and information flows; english version ETS 300051:1991
Edition 1992-09

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); Direct Dialling In (DDI) supplementary service; service description; english version ETS 300062:1991
Edition 1992-09

Integrated Services Digital Network (ISDN); Terminal Portability (TP) supplementary service; service description; english version ETS 300053:1991
Edition 1992-09

Integrated Services Digital Network (ISDN); Terminal Portability (TP) supplementary service; functional capabilities and information flows; english version ETS 300054:1991
Edition 1992-09

Terminal Equipment (TE); videotex; audio syntax; english version ETS 300149:1992
Edition 1992-11

Integrated Services Digital Network (ISDN); Connected Line Identification Restriction (COLR) supplementary service; service description; english version ETS 300095:1992
Edition 1993-02