Public Switched Telephone Network (PSTN) - Category II specification for 2400 bits per second duplex modems standardized for use on the PSTN; English version ETS 300117:1996
Edition 1997-08

Public Switched Telephone Network (PSTN) - Category II specification for 1200 bits per second half duplex and 1200/75 bits per second asymmetrical duplex modems standardized for use on the PSTN; English version ETS 300118:1996
Edition 1997-08

Public Switched Telephone Network (PSTN) - Category II specification for 14400, 12000, 9600, 7200 and 4800 bits per second duplex modems standardized for use on the PSTN; English version ETS 300492:1996
Edition 1997-08

Geometrical Orientation
Edition 1972-03

Radio Equipment and Systems (RES) - Digital Enhanced Cordless Telecommunications (DECT); Data service profile (DSP) - Generic data link service for closed user groups (service type C, class 1); English Version ETS 300699:1996
Edition 1998-06

Public Switched Telephone Network (PTSN) - Category II specification for 1200 bits per second duplex modems standardized for use on the PSTN; English version ETS 300116:1996
Edition 1997-08

Public Switched Telephone Network (PSTN) - Basic Category I and Category II specifications for modems standardized for use on the PSTN; English version ETS 300114:1996
Edition 1997-08

Digital cellular telecommunications system (Phase 2) - Network Management (NM) procedures and messages on the A-bis interface; English version ETS 300623:1996
Edition 1997-07

Videotex presentation layer data syntax; geometric display (CEPT-recommendation T/TE 06-02, Edinburgh 1988); english version ETS 300073:1990
Edition 1992-02

Radio Equipment and Systems (RES) - Digital Enhanced Cordless Telecommunications (DECT); Data Services Profile (DSP) - Generic data link service; Service type C, class 2; English version ETS 300651:1996
Edition 1998-06