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) - 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) - 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) - 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

Private Integrated Services Network (PISN) - Specification, functional model and information flows - Simple dialog supplementary service [ISO/IEC 21407 (2001) modified] (Endorsement of the English version EN 301920 V1.1.1 (2003-06) as German standard)
Edition 2004-03

Private Integrated Services Network (PISN) - Specification, functional model and information flows - Call identification and call linkage additional network features [ISO/IEC 21888 (2001) modified] (Endorsement of the English version EN 301922 V1.1.1 (2003-06) as German standard)
Edition 2004-03

Private Integrated Services Network (PISN) - Specification, functional model and information flows - Short message service supplementary service [ISO/IEC 21989 (2002) modified] (Endorsement of the English version EN 301990 V1.1.1 (2003-06) as German standard)
Edition 2004-03

Integrated Services Digital Network (ISDN); Meet-Me Conference (MMC) supplementary service; functional capabilities and information flows; English version ETS 300165:1993
Edition 1994-01

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