Digital Enhanced Cordless Telecommunications (DECT) - Integrated Services Digital Network (ISDN); DECT/ISDN interworking for intermediate system configuration - Part 3: Profile Specific Test Specification (PSTS) for Fixed radio Termination (FT) (Endorsement of the English version EN 301614-3 V 1.1.2 (1999-02) as German standard)
Edition 2000-07

Private Integrated Services Network (PISN) - Specification, functional models and information flows - Call priority interruption and call priority interruption protection supplementary services (ISO/IEC 15991 (2003), modified) (Endorsement of the English version EN 301655 V1.2.1 (2004-01) as German standard)
Edition 2004-12

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Call priority interruption and call priority interruption protection supplementary services (ISO/IEC 15992 (2003), modified) (Endorsement of the English version EN 301656 V1.2.1 (2004-01) as German standard)
Edition 2004-12

Private Integrated Services Network (PISN) - Specification, functional model and information flows - Private User Mobility (PUM) - Call handling additional network features [ISO/IEC 17877 (2000) modified] (Endorsement of the English version EN 301657 V1.2.1 (2003-06) as German standard)
Edition 2004-03

Private Integrated Services Network (PISN) - Functional requirements for static circuit-mode inter-PINX connections (ISO/IEC 14474 (1998), modified) (Endorsement of the English version EN 301765 V 1.1.1 (2000-08) as German standard)
Edition 2001-06

Broadband Private Integrated Services Networks (B-PISNs) - Inter-exchange signalling protocol - Separated Bearer Control (SBC) (Endorsement of the English version EN 301776 V 1.1.1 (2000-08) as German Standard)
Edition 2001-12

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Private User Mobility (PUM) - Call handling Additional Network Feature (ANF) (ISO/IEC 17878 (2003), modified) (Endorsement of the English version EN 301810 V1.2.1 (2004-01) as German standard)
Edition 2004-12

Private Integrated Services Network (PISN) - Specification, functional models and information flows - Common information Additional Network Feature (ANF) (ISO/IEC 15771 (1998), modified) (Endorsement of the English version EN 301819 V 1.1.1 (2000-10) as German standard)
Edition 2001-06

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Common information Additional Network Feature (ANF) (ISO/IEC 15772 (2003), modified) (Endorsement of the English version EN 301820 V1.2.1 (2004-01) as German standard)
Edition 2004-12

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Private User Mobility (PUM) - Registration supplementary service (ISO/IEC 17876 (2003), modified) (Endorsement of the English version EN 301821 V1.2.1 (2004-01) as German standard)
Edition 2004-12