Information technology -- Telecommunications and information exchange between systems -- Use of OSI applications over the Internet Transmission Control Protocol (TCP)
This International Standard defines a mechanism which allows OSI upper layers (all session, presentation, and application entities) to operate over the Internet Transmission Control Protocol (TCP) without being aware that they are running on a TCP/IP internetwork. It provides similar functionality to ISO/IEC Transport Protocol Class 4. It does not provide a gateway facility between Internet and OSI applications.