Digital cellular telecommunications system (Phase 2) - Substitution and muting of lost frames for Enhanced Full Rate (EFR) speech traffic channels (GSM 06.61 version 4.0.1) (Endorsement of the English version EN 301246 V 4.0.1 (1997-12) as German standard)
Edition 2003-11

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) - Discontinuous Transmission (DTX) for Enhanced Full Rate (EFR) speech traffic channels (GSM 06.81 version 4.1.1) (Endorsement of the English version EN 301248 V4.1.1 (2000-04) as German standard)
Edition 2004-12

Digital cellular telecommunications system (Phase 2) - Voice Activity Detector (VAD) for Enhanced Full Rate (EFR) speech traffic channels (GSM 06.82 version 4.0.1) (Endorsement of the English version EN 301249 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) - 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) - Attachment requirements for Global System for Mobile communications (GSM) - Part 1: Mobile stations in the GSM 900 and DCS 1800 bands - Access (GSM 13.01 version 4.1.1) (Endorsement of the English version EN 301419-1 V4.1.1 (2000-04) as German standard)
Edition 2004-03

Digital cellular telecommunications system (Phase 2+) - Attachment requirements for Global System for Mobile communications (GSM) - High Speed Circuit Switched Data (HSCSD) Multislot Mobile Stations - Access (GSM 13.34 version 5.1.1 Release 1996) (Endorsement of the English version EN 301419-2 V5.1.1 (2000-04) as German standard)
Edition 2004-03

Digital cellular telecommunications system (Phase 2+) - Attachment requirements for Global System for Mobile communications (GSM) - Part 3: Advanced Speech Call Items (ASCI); Mobile Stations; Access (GSM 13.68, version 5.0.2, Release 1996) (Endorsement of the English version EN 301419 V 5.0.2 (1999-11) as German standard)
Edition 2003-04

Digital cellular telecommunications system (Phase 2+) - Attachment requirements for Global System for Mobile communications (GSM) - Railways Band (R-GSM) - Mobile Stations - Access (GSM 13.67 version 5.1.1 Release 1996) (Endorsement of the English version EN 301419-7 V5.1.1 (2000-08) as German standard)
Edition 2004-03