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Events1

Legs61

get/legsList all active legs
post/legsOriginate an outbound leg
get/legs/websocketConnect a WebSocket as a leg (HTTP upgrade)
post/legs/moqConnect a MoQ (Media over QUIC) leg (WebTransport extended-CONNECT, experimental)
get/legs/{id}Get a single leg
delete/legs/{id}Hang up a leg (asynchronous)
post/legs/{id}/answerAnswer a ringing or early-media inbound SIP leg (asynchronous)
post/legs/{id}/ringSend 180 Ringing on a ringing inbound SIP leg (asynchronous)
post/legs/{id}/challengeChallenge a ringing inbound SIP leg with a 401 digest auth request
post/legs/{id}/early-mediaEnable early media on a ringing inbound SIP leg (asynchronous)
post/legs/{id}/muteMute a leg
delete/legs/{id}/muteUnmute a leg
post/legs/{id}/deafDeafen a leg
delete/legs/{id}/deafUndeafen a leg
post/legs/{id}/holdPut a SIP call on hold (asynchronous)
delete/legs/{id}/holdResume a held SIP call (asynchronous)
post/legs/{id}/transferTransfer a SIP leg via REFER (asynchronous)
post/legs/{id}/transfer/acceptAccept a parked inbound REFER
post/legs/{id}/transfer/progressReport interim transfer progress
post/legs/{id}/transfer/completeComplete an accepted inbound transfer
post/legs/{id}/transfer/declineDecline a parked inbound REFER
post/legs/{id}/dtmfSend DTMF digits on a leg
post/legs/{id}/dtmf/acceptEnable DTMF reception on a leg
post/legs/{id}/dtmf/rejectDisable DTMF reception on a leg
post/legs/{id}/rttSend Real-Time Text (T.140) on a SIP leg
post/legs/{id}/rtt/acceptEnable RTT reception on a leg
post/legs/{id}/rtt/rejectDisable RTT reception on a leg
post/legs/{id}/playStart audio playback to a leg
delete/legs/{id}/play/{playbackID}Stop audio playback on a leg
patch/legs/{id}/play/{playbackID}Change the volume of an active leg playback
post/legs/{id}/ttsSynthesize speech and play it on a leg
post/legs/{id}/tts/preflightSynthesize speech and hold it for a later commit
post/legs/{id}/tts/{ttsID}/commitPlay a staged TTS utterance
delete/legs/{id}/tts/{ttsID}Drop a staged TTS utterance without playing it
post/legs/{id}/recordStart recording a leg to a WAV file
delete/legs/{id}/recordStop recording a leg
post/legs/{id}/record/pausePause a leg recording
post/legs/{id}/record/resumeResume a paused leg recording
post/legs/{id}/sttStart real-time speech-to-text on a leg
delete/legs/{id}/sttStop speech-to-text on a leg
post/legs/{id}/stt/finalizeFlush the STT buffer on a leg without stopping STT
post/legs/{id}/agent/elevenlabsAttach an ElevenLabs ConvAI agent to a leg
post/legs/{id}/agent/vapiAttach a VAPI agent to a leg
post/legs/{id}/agent/pipecatAttach a Pipecat bot to a leg
post/legs/{id}/agent/deepgramAttach a Deepgram Voice Agent to a leg
post/legs/{id}/agent/messageInject a message into a running agent session on a leg
delete/legs/{id}/agentDetach the agent from a leg
post/legs/{id}/amdStart answering machine detection on a connected leg
get/legs/{id}/siprecGet a SIPREC recording session
post/legs/{id}/siprecFork a single call to an external SIPREC recording server
get/legs/{id}/streamsList a leg's audio streams
post/legs/{id}/streamsAdd an audio stream to a live call
get/legs/{id}/streams/{streamId}Get one of a leg's audio streams
delete/legs/{id}/streams/{streamId}Remove an audio stream from a live call
patch/legs/{id}/streams/{streamId}Change an audio stream's routing role
post/legs/{id}/streams/{streamId}/roomMix an audio stream into a room
delete/legs/{id}/streams/{streamId}/roomRemove an audio stream from its room
patch/legs/{id}/roleChange a leg's routing role
put/legs/{id}/filtersReplace a leg's audio filter chain
put/legs/{id}/custom-dataReplace a leg's custom data
delete/legs/{id}/custom-dataClear a leg's custom data

Observability5

Rooms32

SIP Registrations5

SIP Trunks4

WebRTC4

Legs

Changes to Play a staged TTS utterance

post/legs/{id}/tts/{ttsID}/commit

Aug 10, 2026c951ca5dcd08 Revision changes
- info
  endpoint added