ISO/IEC 21411-2001 Information technology - Telecommunications and information exchange between systems - Corporate telecommunication networks - Signalling interworking between QSIG and H.323 - Call diversion supplementary services

ISO/IEC 21410-2001 Information Technology - Telecommunications and Information Exchange between Systems - Corporate Telecommunication Networks - Signalling Interworking between QSIG and H.323 - Call Transfer Supplementary Services ISO/IEC 21409-2001 Information technology - Telecommunications and information exchange between systems - Corporate telecommunication networks - Signalling interworking between QSIG and H.323 - Generic functional protocol for the support of supplementary ISO/IEC 21408-2003 Information Technology - Telecommunications and Information Exchange between Systems - Private Integrated Services Network - Inter-Exchange Signalling Protocol - Simple Dialog Supplementary Service ISO/IEC 21471-2020 Information technology — Automatic identification and data capture techniques — Extended rectangular data matrix (DMRE) bar code symbology specification ISO/IEC 21472-2021 Information technology — Scenario evaluation methodology for user interaction influence in biometric system performance ISO/IEC 21481-2021 Information technology — Telecommunications and information exchange between systems — Near field communication interface and protocol 2 (NFCIP-2)