Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Private User Mobility (PUM) - Call handling additional network features
Edition 2000-04

Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network; Specifications, functional model and information flows; Single Step Call Transfer Supplementary Service
Edition 2001-05

Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Make call request supplementary service
Edition 2004-05

Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Message centre monitoring and mailbox identification supplementary services
Edition 2004-05

Information technology - Telecommunications and information exchange between systems -  Private Integrated Services Network; Specification, functional model and information flows; Call Identification and Call Linkage Additional Network Feature
Edition 2001-09

Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Short message service
Edition 2002-07

Private Integrated Services Network (PISN) - Service description, functional capabilities and information flows - Circuit-mode 64 kbit/s bearer services (V1.3.1)
Edition 2003-12-01

Private Integrated Services Network (PISN) - Specification, functional model and information flows - Advice of charge supplementary services
Edition 2003-12-01

Private Integrated Services Network (PISN) - Specification, functional models and information flows - Call diversion supplementary service (V1.3.1)
Edition 2004-05-01

Private Integrated Services Network (PISN) - Specification, functional model and information flows - Path replacement additional network feature (V1.3.1)
Edition 2003-12-01