Framework for real-time text over IP using the session initiation protocol (SIP)
Van Wijk, Arnoud
The Internet Engineering Task Force
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This document lists the essential requirements for real-time Text-over-IP (ToIP) and defines a framework for implementation of all required functions based on the Session Initiation Protocol (SIP) and the Real-Time Transport Protocol (RTP). This includes interworking between Text-over-IP and existing text telephony on the PSTN and other networks.