v53

OpenAPI 3.1.0MITraw.githubusercontent.com2026-08-039357238.7 KB

Legs

Send Real-Time Text (T.140) on a SIP leg

Sends UTF-8 text on the leg's RTT (T.140 / RFC 4103) media stream. Requires that the SDP offer/answer agreed on an m=text section with the remote UA. Enable RTT on the server with RTT_ENABLED=true.

post/legs/{id}/rtt

Request body

textstring required

UTF-8 text to send. May be one or more characters and may include T.140 control codes (e.g. backspace U+0008, CR/LF).

Response

Text sent

instance_idstring

Instance identifier

statusstring required