Procedures for Automatic Interworking Between Automode Modems and Modems Conforming to Recommendations V.32, V.22bis, and V.22
Edition 1990-08

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

Common interface specification for conditional access and other digital video broadcasting decoder applications; German version EN 50221:1997 + Corrigendum:2000
Edition 2001-03

Digital Video Broadcasting (DVB) - Interaction channel through Public Switched Telecommunications Network (PSTN)/Integrated Services Digital Network (ISDN); English version ETS 300801:1997
Edition 1998-06

European digital cellular telecommunications system (Phase 2) - Terminal Adaptation Functions (TAF) for services using asynchronous bearer capabilities; English version ETS 300583:1994
Edition 1995-03

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

Integrated Services Digital Network (ISDN); routing in support of ISUP version 1 services; english version ETS 300100:1992
Edition 1992-09

European digital cellular telecommunications system (Phase 2) - Terminal Adaptation Functions (TAF) for services using synchronous bearer capabilities; English version ETS 300584:1994
Edition 1995-01

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

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