Text over IP / Real-Time Text Information Site
Text over IP (ToIP), also known as Real-Time Text (RTT), is a means of sending
text over IP networks within the context of a multimedia session.
This page provides links to related specifications and a error rate calculator
to help those engineering the network better understand character loss.
Real-Time Text (RTT) Specifications
IETF RFCs
- RFC 4102 - Registration of the text/red MIME Sub-Type
- RFC 4103 - RTP Payload for Text Conversation
- RFC 4351 - Real-Time Transport Protocol (RTP) Payload for Text Conversation Interleaved in an Audio Stream
- RFC 5194 - Framework for Real-Time Text over IP Using the Session Initiation Protocol (SIP)
- RFC 9071 - RTP-Mixer Formatting of Multiparty Real-Time Text
ITU
Real-Time Text (RTT) Related Links
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