Digital cellular telecommunications system (Phase 2) - Enhanced Full Rate (EFR) speech transcoding (GSM 06.60 version 4.1.1) (Endorsement of the English version EN 301245 V4.1.1 (2000-08) as German standard)
Edition 2004-12

Digital cellular telecommunications system (Phase 2) - Fault management of the Base Station System (BSS) (GSM 12.11 version 4.2.1) (Endorsement of the English version EN 301251 V4.2.1 (1998-12) as German standard)
Edition 2004-12

Digital cellular telecommunications system (Phase 2+) - Link Adaptation (GSM 05.09 version 8.0.1 Release 1999) (Endorsement of the English version EN 301709 V8.0.1 (2000-10) as German standard)
Edition 2005-04

Digital cellular telecommunications system (Phase 2+) (GSM) - Adaptive Multi-Rate (AMR); Speech processing functions - General description (GSM 06.71 version 7.0.2 Release 1998) (Endorsement of the English version EN 301703 V 7.0.2 (1999-12) as German standard)
Edition 2003-08

Digital cellular telecommunications system (Phase 2+) (GSM) - Test sequences for the Adaptive Multi-Rate (AMR) speech codec (GSM 06.74 version 7.0.3 Release 1998) (Endorsement of the English version EN 301713 V 7.0.3 (2000-10) as German standard)
Edition 2003-08

Digital cellular telecommunications system (Phase 2) - Comfort noise aspects for Enhanced Full Rate (EFR) speech traffic channels (GSM 06.62 version 4.0.1) (Endorsement of the English version EN 301247 V 4.0.1 (1997-12) as German standard)
Edition 2003-11

Digital cellular telecommunications system (Phase 2) - Test sequences for the GSM Enhanced Full Rate (EFR) speech codec (GSM 06.54 version 4.0.1) (Endorsement of the English version EN 301250 V 4.0.1 (1998-09) as German standard)
Edition 2003-11

Digital cellular telecommunications system (Phase 2) - Enhanced Full Rate (EFR) speech processing functions - General description (GSM 06.51 version 4.1.1) (Endorsement of the English version EN 301243 V4.1.1 (2000-11) as German standard)
Edition 2004-12

Digital cellular telecommunications system (Phase 2+) - Discontinuous Transmission (DTX) for Adaptive Multi-Rate (AMR) speech traffic channels (GSM 06.93 version 7.3.1 Release 1998) (Endorsement of the English version EN 301707 V7.3.1 (2001-03) as German standard)
Edition 2006-01

Digital cellular telecommunications system (Phase 2) - Attachment requirements for Global System for Mobile communications (GSM) - Mobile stations in the DCS-1800-band and additional GSM 800 band; Telephony (GSM 13.02 version 4.0.1) (Endorsement of the English version EN 301420 V 4.0.1 (1999-12) as German standard)
Edition 2003-04