European digital cellular telecommunications system (Phase 2) - Routeing of calls to/from Public Data Networks (PDN); English version ETS 300541:1994
Edition 1995-02

European digital cellular telecommunications system (Phase 2) - Interworking between the Public Land Mobile Network (PLMN) and a Packet Switched Public Data Network/Integrated Services Digital Network (PSPDN/ISDN) for the support of packet switched data transmission services; English version ETS 300603:1994
Edition 1995-01

European digital cellular telecommunications system (Phase 2) - Interworking between the Public Land Mobile Network (PLMN) and the Circuit Switched Public Data Network (CSPDN); English version ETS 300601:1994
Edition 1995-01

Radio Equipment and Systems (RES) - Trans-European Trunked Radio (TETRA) - Packet Data Optimized (PDO) - Part 1: General network design; English version ETS 300393-1:1996
Edition 1997-08

Electromagnetic compatibility and Radio spectrum Matters (ERM) - Enhanced Radio MEssage System (ERMES) - Part 7: Operation and maintenance aspects; English version ETS 300133-7:1997
Edition 1998-12