Digital cellular telecommunications system (Phase 2) - Subscriber data management - Stage 2 (Endorsement of the English version ETS 300629:1996-11 as German standard)
Edition 2001-04

Integrated Services Digital Network (ISDN) - Signalling System No. 7; Digital cellular telecommunications system (phase 2); Application of ISDN User Part (ISUP) version 2 for the ISDN; Public Land Mobile Network (PLMN) signalling interface - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsement of the English version ETS 300646-2:1998 as German standard)
Edition 1999-09

Integrated Services Digital Network (ISDN) - Signalling System No. 7; Digital cellular telecommunications system (Phase 2); application of ISDN User Part (ISUP) version 2 for the ISDN-Public Land Mobile Network (PLMN) signalling interface - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification (Endorsement of the English version ETS 300646-3:1998 as German Standard)
Edition 1999-09

Integrated Services Digital Network (ISDN) - Signalling System No. 7; Digital cellular telecommunications system (Phase 2); Application of ISDN User Part (ISUP) version 2 for the ISDN-Public Land Mobile Network (PLMN) signalling interface - Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation extra Information for Testing (PIXIT) proforma specification (Endorsement of the English version ETS 300646-4:1998 as German Standard)
Edition 1999-09

Digital cellular telecommunications system (Phase 2+) - Alphabets and language-specific information (Endorsement of the English version ETS 300900:1998-01 as German standard)
Edition 2001-06

Digital cellular telecommunications system (Phase 2+) - Technical realization of Short Message Service (SMS) Point-to-Point (PP) (Endorsement of the English version ETS 300901:1998-12 as German standard)
Edition 2001-06

Digital cellular telecommunications system (Phase 2+) - Technical realization of Short Message Service Cell Broadcast (SMSCB) (Endorsement of the English version ETS 300902:1999-02 as German standard)
Edition 2001-06

Digital cellular telecommunications system (Phase 2+) - Teleservices supported by a GSM Public Land Mobile Network (PLMN) (Endorsement of the English version ETS 300905:1998-01 as German standard)
Edition 2001-06

Digital cellular telecommunications system (Phase 2+) - Mobile Stations (MS) features (Endorsement of the English version ETS 300906:1998-06 as German standard)
Edition 2001-06

Digital cellular telecommunications system (Phase 2+) - Man-Machine Interface (MMI) of the Mobile Station (MS) (Endorsement of the English version ETS 300907:1999-08 as German standard)
Edition 2001-06