Integrated Services Digital Network (ISDN) - Signalling System No. 7 (SS7); ISDN User Part (ISUP) V 4 interactions with the Intelligent Network Application Part (INAP) - Part 1: Protocol specification (ITU-T-Recommendation Q.1601:1999, modified) (Endorsement of the English version EN 301464 V 1.1.1 (2000-12) as German Standard)
Edition 2001-09

Intelligent Network (IN) - Intelligent Network Application Protocol (INAP); Capability Set 2 (CS2) - Cordless Terminal Mobility (CTM); Stage 3 specifications for Service Control Function (SCF); SCF and Call Unrelated Service Function (CUSF)/Service Switching Function (SSF) (Endorsement of the English version EN 301143 V 1.1.4 (1999-09) as German Standard)
Edition 2001-09

Telecommunications Management Network (TMN) - Management interfaces associated with the VB5.1 reference point (Endorsement of the English version EN 301271 V 1.2.1 (2001-07) as German Standard)
Edition 2001-12

Corporate telecommunication Networks (CN) - Signalling interworking between QSIG and H.323 - Basic services (Endorsement of ISO/IEC 23289 (2002), modified) (Endorsement of the English version EN 302036 V 1.1.1 (2003-05) as German standard)
Edition 2003-12

Private Integrated Services Network (PISN) - Mapping functions for the tunnelling of QSIG through H.323 networks (Endorsement of ISO/IEC 23290 (2002), modified) (Endorsement of the English version EN 302037 V 1.1.1 (2003-05) as German standard)
Edition 2003-12

Telecommunications Management Network (TMN) - Linear multiplex section protection configuration information model for the Network Element (NE) view (Endorsement of the English version EN 301268 V 1.1.1 (1999-05) as German Standard)
Edition 1999-12

Telecommunications Management Network (TMN) - Functional specification of call routeing information management on the Operations System/Network Element (OS/NE) interface (Endorsement of the English version EN 300292 V 1.2.1 (1998-08) as German Standard)
Edition 1999-12

Integrated Services Digital Network (ISDN) - Signalling System No. 7 (SS7); ISDN User Part (ISUP) - Enhancement for support of Number Portability (NP) (ITU-T-Recommendation Q.769.1 (2000), modified) (Endorsement of the English version EN 302097 V 1.2.2 (2000-09) as German Standard)
Edition 2001-09

Digital cellular telecommunications system (Phase 2+) - Security related network functions (Endorsement of the English version ETS 300929:1998-07 as German standard)
Edition 2001-06

Terminal Equipment (TE) - Narrowband networks (PSTN or ISDN) - Access to interactive audio-visual retrieval services without data-facility; access for ISDN or PSTN videophony terminals to audio-visual databases (Endorsement of the English version ETS 300834:1998 as German standard)
Edition 1999-06