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

Digital cellular telecommunications system (Phase 2) - Transmission planning aspects of the speech service in the GSM Public Land Mobile Network (PLMN) system (Endorsement of the English version ETS 300540:1999-07 as German standard)
Edition 2001-04

Digital cellular telecommunications system (Phase 2) - General requirements on interworking between the Public Land Mobile Network (PLMN) and the Integrated Services Digital Network (ISDN) or Public Switched Telephone Network (PSTN) (Endorsement of the English version ETS 300604:1999 as German standard)
Edition 2000-12

Digital cellular telecommunications system (Phase 2+) - General requirements on interworking between the Public Land Mobile Network (PLMN) and the Integrated Services Digital Network (ISDN) or Public Switched Telephone Network (PSTN) (Endorsement of the English version ETS 300976:2000-06 as German standard)
Edition 2001-06

Digital cellular telecommunications system (Phase 2+) - Interworking between a 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 (Endorsement of the English version ETS 300975:1997-05 as German standard)
Edition 2001-06

Integrated Services Digital Network (ISDN) - Signalling System No. 7; Digital cellular telecommunications system (Phase 2+); Application of ISDN User Part (ISUP) version 3 for the ISDN-Public Land Mobile Network (PLMN) signalling interface - Part 1: Protocol specification (GSM 09.14, version 7.0.2, Release 1998) (Endorsement of the English version EN 302646-1 V 7.0.2 (2000-09) as German Standard)
Edition 2001-09

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 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 1: Protocol specification (GSM 09.12 version 4.2.2) (Endorsement of the English version EN 300646-1 V 4.2.2 (1999-05) as German standard)
Edition 2000-12

Integrated Services Digital Network (ISDN) - Signalling System No. 7 (SS7); Digital cellular telecommunications system (Phase 2+); Application of ISDN User Part (ISUP) version 3 for the ISDN-Public Land Mobile Network (PLMN) signalling interface - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsement of the English version EN 302646-2 V 7.1.1 (2000-11) as German Standard)
Edition 2001-09