Private Integrated Services Network (PISN) - Specification, functional models and information flows - Identification supplementary services [ISO/IEC 14136 (1995), modified] (Endorsement of the English version ETS 300173:1996 as German standard)
Edition 2000-06

Services and Protocols for Advanced Networks (SPAN) - Anonymous Call Rejection (ACR) supplementary service - Service description (Endorsement of the English version EN 301798 V 1.1.1 (2000-10) as German Standard)
Edition 2001-10

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 11: Supplementary services stage 2; Sub-Part 7: Short Number Addressing (SNA) (Endorsement of the English version ETS 300392-11-7:2000 as German standard)
Edition 2000-12

Integrated Services Digital Network (ISDN); Line Hunting (LH) supplementary service - Digital Subscriber Signalling System No. one (DSS1) - Part 1: Protocol specification (Endorsement of the English version EN 301484-1 V 1.1.1 (2000-04) as German standard)
Edition 2001-02

Intelligent Network (IN) - Intelligent Network Capability Set 3 (CS3); Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification - Part 1: Basic capability set of CS3 (Endorsement of the English version EN 301934-1 V 1.1.1 (2003-01) as German standard)
Edition 2003-07

Digital cellular telecommunications system (Phase 2) - General on supplementary services (Endorsement of the English version ETS 300503:1996-05 as German standard)
Edition 2001-04

Digital cellular telecommunications system (Phase 2) - Closed User Group (CUG) supplementary services - Stage 3 (Endorsement of the English version ETS 300569:1996-11 as German standard)
Edition 2001-04

Integrated Services Digital Network (ISDN) - Outgoing Call Barring-User Controlled (OCB-UC) supplementary service - Service description (Endorsement of the English version EN 301084 V 2.1.1 (2000-07) as German standard)
Edition 2002-07

Integrated Services Digital Network (ISDN) - Completion of Calls to Busy Subscriber (CCBS) supplementary service - Service description (Endorsement of the English version EN 300357 V 1.2.1 (2001-05) as German standard)
Edition 2002-07

Terrestrial Trunked Radio (TETRA) - Speech codec for full-rate traffic channel - Part 3: Specific operating features (Endorsement of the English version EN 300395-3 V1.2.1 (2005-01) as German standard)
Edition 2005-07