Private Integrated Services Network (PISN) - Specification, functional models and information flows - Private User Mobility (PUM); Registration supplementary service (ISO/IEC 17875 (2000), modified) (Endorsement of the English version EN 301822 V 1.1.1 (2000-10) as German standard)
Edition 2001-06

Private Integrated Services Network (PISN) - Specification, functional model and information flows - Wireless terminal location registration supplementary service and wireless terminal information exchange additional network feature [ISO/IEC 15428 (1999) modified] (Endorsement of the English version EN 301824 V1.1.1 (2003-06) as German standard)
Edition 2004-03

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Wireless terminal location registration supplementary service and wireless terminal information exchange Additional Network Feature (ANF) (ISO/IEC 15429 (2003), modified) (Endorsement of the English version EN 301825 V1.1.1 (2004-01) as German standard)
Edition 2004-12

Private Integrated Services Network (PISN) - Specification, functional model and information flows - Wireless terminal call handling additional network features [ISO/IEC 15430 (1999) modified] (Endorsement of the English version EN 301826 V1.1.1 (2003-06) as German standard)
Edition 2004-03

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Wireless terminal call handling Additional Network Feature (ANF) (ISO/IEC 15431 (2003), modified) (Endorsement of the English version EN 301827 V1.1.1 (2004-01) as German standard)
Edition 2004-12

Private Integrated Services Network (PISN) - Specification, functional model and information flows - Wireless terminal authentication supplementary services [ISO/IEC 15432 (1999) modified] (Endorsement of the English version EN 301828 V1.1.1 (2003-06) as German standard)
Edition 2004-03

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Wireless terminal authentication supplementary service (ISO/IEC 15433 (2003), modified) (Endorsement of the English version EN 301829 V1.1.1 (2004-01) as German standard)
Edition 2004-12

Private Integrated Services Network (PISN) - Profile Standard for the Use of PSS1 (QSIG) in Air Traffic Services Networks (Endorsement of the English version EN 301846 V 1.1.1 (2001-07) as German Standard)
Edition 2001-12

Private Integrated Services Network (PISN) - Use of QSIG at the C reference point between a PINX and an interconnecting network (ISO/IEC 20161 (2001), modified) (Endorsement of the English version EN 301914 V1.1.1 (2004-01) as German standard)
Edition 2004-12

Private Integrated Services Network (PISN) - Specification, functional model and information flows - Single step call transfer supplementary service [ISO/IEC 19459 (2001) modified] (Endorsement of the English version EN 301918 V1.1.1 (2003-06) as German standard)
Edition 2004-03