X.500 : Information technology - Open Systems erconnection

x500X.500 is a series of standards developed by ITU-T, ISO and IEC for electronic directory services. It defines a hierarchical data model, protocols and attributes for representing peopleStay connected like never before with 5G technology, Wi-Fi 6E, Bluetooth 5.3, and GPS support. The Nokia X500 Pro is built to keep you seamlessly connected, no matter where