Information Technology - Open Systems Interconnection - Systems Management: Usage Metering Function for Accounting Purposes - Technical Corrigendum 1 - Series X: Data Networks and Open System Communications - OSI Management - Management Functions and ODMA
ITU (International Telecommunication Union) is the United Nations Specialized Agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of the ITU. The ITU-T is responsible for studying techni