Digital cellular telecommunications system (Phase 2+) (GSM) - Support of Mobile Number Portability (MNP) - Service description; Stage 1 (GSM 02.66 version 7.0.2 Release 1998) (Endorsement of the English version EN 301715 V 7.0.2 (1999-12) as German standard)
Edition 2003-08

Digital cellular telecommunications system (Phase 2+) (GSM) - Support of Mobile Number Portability (MNP) - Technical Realisation; Stage 2 (GSM 03.66 version 7.3.1 Release 1998) (Endorsement of the English version EN 301716 V 7.3.1 (2000-10) as German standard)
Edition 2003-08

Digital cellular telecommunications system (Phase 2+) - GSM Cordless Telephony System (CTS), Phase 1 - Service description - Stage 1 (GSM 02.56 version 8.0.1 Release 1999) (Endorsement of the English version EN 302403 V8.0.1 (2000-10) as German standard)
Edition 2004-03

Digital cellular telecommunications system (Phase 2+) - GSM Cordless Telephony System (CTS), Phase 1 - Lower Layers of the CTS Radio Interface - Stage 2 (GSM 03.52 version 8.0.1 Release 1999) (Endorsement of the English version EN 302404 V8.0.1 (2000-09) as German standard)
Edition 2004-03

Digital cellular telecommunications system (Phase 2+) (GSM) - GSM Cordless telephony system (CTS), Phase 1 - CTS Architecture description; Stage 2 (GSM 03.56 version 7.1.1 Release 1998) (Endorsement of the English version EN 302405 V 7.1.1 (2000-08) as German standard)
Edition 2003-08

Digital cellular telecommunications system (Phase 2+) - GSM Cordless Telephony System (CTS), Phase 1 - CTS radio interface layer 3 specification (GSM 04.56 version 8.0.1 Release 1999) (Endorsement of the English version EN 302406 V8.0.1 (2000-08) as German standard)
Edition 2004-03

Digital cellular telecommunications system (Phase 2+) - GSM Cordless Telephony System (CTS), Phase 1 - CTS supervising system layer 3 specification (GSM 04.57 version 8.0.1 Release 1999) (Endorsement of the English version EN 302407 V8.0.1 (2000-08) as German standard)
Edition 2004-03

Digital cellular telecommunications system (Phase 2+) - GSM Cordless Telephony System (CTS), Phase 1 - CTS-FP Radio subsystem (GSM 05.56 version 8.0.1 Release 1999) (Endorsement of the English version EN 302408 V8.0.1 (2000-10) as German standard)
Edition 2004-03

Digital cellular telecommunications system (Phase 2+) - Specification of the cordless telephony system subscriber identity module for both fixed part and mobile station (GSM 11.19 version 7.0.3 Release 1998) (Endorsement of the English version EN 302409 V 7.0.3 (2000-08) as German standard)
Edition 2003-08

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