Public Switched Telephone Network (PSTN) - Category II specification for 9600 or 4800 bits per second duplex modems standardized for use on the PSTN; English version ETS 300002:1996
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

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

Terminal Equipment (TE); framework of videotex terminal protocols; English version ETS 300222:1993
Edition 1994-01

Integrated Services Digital Network (ISDN); support of CCITT recommendation X.21, X.21bis and X.20bis based Data Terminal Equipments (DTEs) by an ISDN; synchronous and asynchronous terminal adaption functions; english version ETS 300103:1990
Edition 1992-02

Satellite Earth Stations and Systems (SES) - The interconnection of Very Small Aperture Terminal (VSAT) systems to Packet Switched Public Data Networks (PSPDNs); English version ETS 300194:1995
Edition 1996-06

Terminal Equipment (TE) - Group 3 facsimile equipment; English version ETS 300242:1997
Edition 1998-04

Digital Enhanced Cordless Telecommunications (DECT) - Global System for Mobile communications (GSM); DECT/GSM Interworking Profile (IWP) - Implementation of facsimile group 3; English version ETS 300792:1997
Edition 1998-07

Terminal Equipment (TE); syntax-based videotex lower layer protocols using packet mode access over the Public Switched Telephone Network (PSTN); English version ETS 300221:1993
Edition 1994-01

European digital cellular telecommunications system (Phase 2) - GSM Public Land Mobile Network (PLMN) connection types; English version ETS 300528:1994
Edition 1995-01