Digital cellular telecommunications system (Phase 2+) - AT command set for GSM Mobile Equipment (ME) (Endorsement of the English version ETS 300916:1999-12 as German standard)
Edition 2001-06

Digital cellular telecommunications system (Phase 2+) - GSM Application Programming Interface (GSM-API) (Endorsement of the English version ETS 300917:1998-05 as German standard)
Edition 2001-06

Digital cellular telecommunications system (Phase 2+) - Service accessibility (Endorsement of the English version ETS 300921:1997-04 as German standard)
Edition 2001-06

Digital cellular telecommunications system - Subscriber Identity Modules (SIM) - Functional characteristics (Endorsement of the English version ETS 300922:1999-04 as German standard)
Edition 2001-06

Digital cellular telecommunications system (Phase 2+) - Security related network functions (Endorsement of the English version ETS 300929:1998-07 as German standard)
Edition 2001-06

Digital cellular telecommunications system (Phase 2+) - Functions related to Mobile Station (MS) in idle mode and group receive mode (Endorsement of the English version ETS 300930:1998-12 as German standard)
Edition 2001-06

Digital cellular telecommunications system (Phase 2+) - Enhanced Multi-Level Precedence and Pre-emption service (eMLPP) - Stage 2 (Endorsement of the English version ETS 300932:1997-05 as German standard)
Edition 2001-06

Digital cellular telecommunications system (Phase 2+) - Voice Group Call Service (VGCS) - Stage 2 (Endorsement of the English version ETS 300933:1998-12 as German standard)
Edition 2001-06

Digital cellular telecommunications system (Phase 2+) - Voice Broadcast Service (VBS) - Stage 2 (Endorsement of the English version ETS 300934:1998-12 as German standard)
Edition 2001-06

Digital cellular telecommunications system - Layer 1 - General requirements (Endorsement of the English version ETS 300936:1997-04 as German standard)
Edition 2001-06