ISO/IEC 20117-2004 Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Interexchange signalling protocol - Message centre monitoring and mailbox identification supplementary services

ISO/IEC 20116-2004 Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Message centre monitoring and mailbox identification su ISO/IEC 20115-2004 Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Use of QSIG for Message Centre Access (MCA) profile standard ISO/IEC 20114-2004 Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Make call request supplementary service ISO/IEC 20161-2001 Information Technology - Telecommunications and Information Exchange between Systems - Private Integrated Services Network - Use of QSIG at the C Reference Point between a PINX and an Interconnecting Network ISO/IEC 20162-2001 Information Technology - Data Interchange on 300 mm Optical Disk Cartridges of Type WORM (Write Once Read Many) Using Irreversible Effects - Capacity: 30 Gbytes Per Cartridge ISO/IEC 20243-1-2018 Information Technology - Open Trusted Technology ProviderTM Standard (O-TTPS) - Mitigating maliciously tainted and counterfeit products - Part 1: Requirements and recommendations