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ITU-T X.327 General arrangements for interworking between Packet-Switched Public Data Networks (PSPDNs) and private data networks for the provision of data transmission services
ITU-T X.210 Information technology - Open Systems Interconnection - Basic Reference Model: Conventions for the definition of OSI services
ITU-T X.739 Information technology - Open Systems Interconnection - Systems Management: Metric objects and attributes
ITU-T X.223 Use of X.25 to provide the OSI connection-mode network service for ITU-T applications
ITU-T X.738 Information technology - Open Systems Interconnection - Systems management: Summarization function
ITU-T D.501R Accounting rates applicable to telex relations between countries in Asia and Oceania
ITU-T D.601R Determination of accounting rate shares and collection charges in telex relations between countries in Africa
ITU-T J.80 Transmission of component-coded digital television signals for contribution-quality applications at bit rates near 140 Mbit/s
ITU-T J.81 Transmission of component-coded digital television signals for contribution-quality applications at the third hierarchical level of ITU-T Recommendation G.702
ITU-T F.740 Audiovisual interactive services
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