Digital cellular telecommunications system (Phase 2+) (GSM) - Voice Activity Detection (VAD) for Adaptive Multi-Rate (AMR) speech traffic channels - General description (GSM 06.94 version 7.1.1 Release 1998) (Endorsement of the English version EN 301708 V 7.1.1 (1999-12) as German standard)
Edition 2003-08

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) - 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+) - Substitution and muting of lost frames for Adaptive Multi Rate (AMR) speech traffic channels (GSM 06.91 version 7.1.1 Release 1998) (Endorsement of the English version EN 301705 V7.1.1 (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) - 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) - 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

Digital cellular telecommunications system (Phase 2) - Point-to-Point (PP) Short Message Service (SMS) support on mobile radio interface (Endorsement of the English version ETS 300559:1996-09 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 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 2: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsement of the English version ETS 300646-2:1998 as German standard)
Edition 1999-09