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

Broadband Integrated Services Digital Network (B-ISDN) - Signalling ATM Adaptation Layer (SAAL) - Layer management for the SAAL at the Network Node Interface (NNI) - Part 1: Service Specific Connection Oriented Protocol (SSCOP) and Service Specific Co-ordination Function (SSCF) (ITU-T Recommendation Q.2144 (1995), modified) (Endorsement of the English version EN 300647-1 V1.1.2 (1998-11) as German standard)
Edition 2000-12

Integrated Services Digital Network (ISDN) - Message Waiting Indication (MWI) supplementary service - Service description (Endorsement of the English version EN 300650 V 1.2.1 (2001-05) as German standard)
Edition 2002-07

Broadband Radio Access Networks (BRAN) - High PErformance Radio Local Area Network (HIPERLAN) Type 1 - Functional specification (Endorsement of the English version EN 300652 V 1.2.1 (1998-07) as German standard)
Edition 2001-02

Access and terminals (AT) - Analogue access to the Public Switched Telephone Network (PSTN); Subscriber line protocol over the local loop for display (and related) services - Part 1: On-hook data transmission (Endorsement of the English version EN 300659-1 V 1.3.1 (2001-01) as German Standard)
Edition 2001-12

Access and terminals (AT) - Analogue access to the Public Switched Telephone Network (PSTN); Subscriber line protocol over the local loop for display (and related) services - Part 2: Off-hook data transmission (Endorsement of the English version EN 300659-2 V 1.3.1 (2001-01) as German Standard)
Edition 2001-12

Access and terminals (AT) - Analogue access to the Public Switched Telephone Network (PSTN); Subscriber line protocol over the local loop for display (and related) services - Part 3: Data link message and parameter codings (Endorsement of the English version EN 300659-3 V 1.3.1 (2001-01) as German Standard)
Edition 2001-12

Electromagnetic compatibility and Radio spectrum Matters (ERM) - Road Transport and Traffic Telematics (RTTT) - Dedicated Short Range Communication (DSRC) transmission equipment (500 kbit/s/250 kbit/s) operating in the 5,8 GHz Industrial, Scientific and Medical (ISM) band - Part 1: General characteristics and test methods for Road Side Units (RSU) and On-Board Units (OBU) (Endorsement of the English version EN 300674-1 V1.2.1 (2004-08) as German standard)
Edition 2005-02

Transport and Traffic Telematics (TTT) - Dedicated Short Range Communication (DSRC) transmission equipment (500 kbit/s / 250 kbit/s) operating in the 5795 MHz to 5815 MHz frequency band - Part 2: Harmonised Standard for access to radio spectrum - Sub-part 1: Road Side Units (RSU) (Endorsement of the English version EN 300 674-2-1 V3.1.1 (2022-03) as a German standard)
Edition 2022-07

Transport and Traffic Telematics (TTT) - Dedicated Short Range Communication (DSRC) transmission equipment (500 kbit/s / 250 kbit/s) operating in the 5 795 MHz to 5 815 MHz frequency band - Part 2: Harmonised Standard for access to radio spectrum - Sub-part 2: On-Board Units (OBU) (Endorsement of the English version EN 300 674-2-2 V2.2.1 (2019-06) as a German standard)
Edition 2019-10