Integrated Services Digital Network (ISDN) - Generic keypad protocol for the support of supplementary services - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification (Endorsement of the English version EN 300122-1 V 1.2.4 (1998-06) as German standard)
Edition 2000-01

Services and Protocols for Advanced Networks (SPAN) - Operation of the Bearer Independent Call Control (BICC) protocol with SIG.4/PNNI1.0/AINI signalling specification (ATM Forum specification AF-CS-VMOA-0146.000 (2000), modified) (Endorsement of the English version EN 302120 V 1.1.1 (2003-01) as German standard)
Edition 2003-07

Digital cellular telecommunications system (Phase 2+) - Mobile radio interface layer 3 specification - Radio Resource Control Protocol (GSM 04.18 version 8.4.1 Release 1999) (Endorsement of the English version EN 301503 V8.4.1 (2000-10) as German standard)
Edition 2004-03

Distribution automation using distribution line carrier systems - Part 4: Data communication protocols; Section 42: Application protocols; Application layer (IEC 61334-4-42:1996); German version EN 61334-4-42:1996
Edition 1997-09

Terminal Equipment (TE) - Syntax-based videotex protocol - Terminal conformance testing (Endorsement of the English version EN 300236 V 1.2.1:1997-12 as German standard)
Edition 1999-06

Broadband Integrated Services Digital Network (B-ISDN) - Signalling ATM Adaptation Layer (SAAL); Service Specific Connection Oriented Protocol (SSCOP) - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsement of the English version ETS 300436-2:1998 as German standard)
Edition 1999-09

Broadband Integrated Services Digital Network (B-ISDN) - Signalling ATM Adaptation Layer (SAAL); Service Specific Connection Oriented Protocol (SSCOP) - Part 1: Protocol specification (ITU-T-Recommendation Q.2110, modified); (Endorsement of the English version EN 300436-1 V 1.2.1 (2000-09) as German Standard)
Edition 2001-09

Electronic Programme Guide (EPG); Protocol for a TV Guide using electronic data transmission (Endorsement of the English version EN 300707 V 1.2.1 (2003-04) as German standard)
Edition 2003-08

Telecontrol equipment and systems - Part 6: Telecontrol protocols compatible with ISO standards and ITU-T recommendations; section 2: Use of basic standards (OSI layers 1-4) (IEC 60870-6-2:1995); German version EN 60870-6-2:1995
Edition 1997-06

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol; Data link layer - Part 4: Protocol Implementation Conformance Statement (PICS) proforma specification for the general protocol (Endorsement of the English version EN 300402-4 V 1.2.3 (1999-11) as German standard)
Edition 2000-10