Private Integrated Services Network (PISN) - Service description, functional capabilities and information flows - Circuit-mode 64 kbit/s bearer services [ISO/IEC 11574 (2000) modified] (Endorsement of the English version EN 300171 V1.3.1 (2003-06) as German standard)
Edition 2004-03

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Circuit-mode basic services [ISO/IEC 11572 (2000) modified] (Endorsement of the English version EN 300172 V1.5.1 (2003-06) as German standard)
Edition 2004-03

Private Integrated Services Network (PISN) - Addressing (ISO/IEC 11571:1998, modified) (Endorsement of the English version EN 300189 V 1.2.1(1999-11) as German standard)
Edition 2000-10

Private Integrated Services Network (PISN) - Specification, functional model and information flows - Name identification supplementary services [ISO/IEC 13864 (1995) modified] (Endorsement of the English version EN 300237 V1.3.1 (2003-06) as German standard)
Edition 2004-03

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Name identification supplementary service [ISO/IEC 13868 (2003), modified] (Endorsement of the English version DIN 300238 V1.3.1 (2004-01) as German standard)
Edition 2004-12

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Generic functional protocol for the support of supplementary services [ISO/IEC 11582 (2002) modified] (Endorsement of the English version EN 300239 V1.3.1 (2003-06) as German standard)
Edition 2004-03

Private Integrated Services Network (PISN) - Specification, functional models and information flows - Call diversion supplementary service (ISO/IEC 13872 (2003), modified) (Endorsement of the English version EN 300256 V1.3.1 (2004-01) as German standard)
Edition 2004-12

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Call diversion supplementary service (ISO/IEC 13873 (2003), modified) (Endorsement of the English version EN 300257 V1.3.1 (2004-01) as German standard)
Edition 2004-12

Private Integrated Services Network (PISN) - Specification, functional model and information flows - Path replacement additional network feature [ISO/IEC 13863 (1998), modified] (Endorsement of the English version EN 300258 V1.3.1 (2003-06) as German standard)
Edition 2004-03

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Path replacement Additional Network Feature (ANF) (ISO/IEC 13874 (2003), modified) (Endorsement of the English version EN 300259 V1.3.1 (2004-01) as German standard)
Edition 2004-12