Send call commands

Unified JSON-RPC style endpoint for executing call methods through command-based dispatch. Send a request with the appropriate `command` field to invoke the desired call operation. All async-safe RELAY methods can be sent through this endpoint without a WebSocket connection. ## Supported Commands Use one of the following commands in the `command` field of the request body to perform the corresponding action on an active call. For more details on each command, refer to the individual API reference documentation linked below. | Command | Description | |---------|-------------| | `dial` | Create and initiate a new outbound call | | `update` | Modify an active call's dialplan in real-time | | `calling.end` | Terminate an active call immediately | | `calling.transfer` | Transfer a call to a new destination (SIP URI, phone number, or inline SWML) | | `calling.disconnect` | Disconnect bridged calls without hanging up either leg | | `calling.play` | Play audio, TTS, silence, or ringtone to a call | | `calling.play.pause` | Pause active playback | | `calling.play.resume` | Resume paused playback | | `calling.play.stop` | Stop active playback | | `calling.play.volume` | Adjust playback volume | | `calling.record` | Start recording a call | | `calling.record.pause` | Pause active recording | | `calling.record.resume` | Resume paused recording | | `calling.record.stop` | Stop active recording | | `calling.collect` | Collect DTMF or speech input | | `calling.collect.stop` | Stop active collection | | `calling.collect.start_input_timers` | Start input timers on active collect | | `calling.detect` | Start a detector (answering machine, fax, or digit) | | `calling.detect.stop` | Stop active detector | | `calling.tap` | Tap call audio to an RTP or WebSocket endpoint | | `calling.tap.stop` | Stop active tap | | `calling.stream` | Stream call audio to a WebSocket endpoint | | `calling.stream.stop` | Stop active stream | | `calling.denoise` | Start noise reduction on a call | | `calling.denoise.stop` | Stop noise reduction | | `calling.transcribe` | Start call transcription | | `calling.transcribe.stop` | Stop active transcription | | `calling.ai_hold` | Place an AI call on hold | | `calling.ai_unhold` | Resume an AI call from hold | | `calling.ai_message` | Inject a message into an active AI conversation | | `calling.ai.stop` | Stop an active AI session | | `calling.live_transcribe` | Start, stop, or summarize real-time transcription | | `calling.live_translate` | Start, stop, summarize, or inject real-time translation | | `calling.send_fax.stop` | Stop active fax send | | `calling.receive_fax.stop` | Stop active fax receive | | `calling.refer` | Transfer a SIP call via SIP REFER | | `calling.user_event` | Fire a custom user event on the call | #### Permissions The API token used to authenticate must have the following scope(s) enabled to make a successful request: _Voice_. [Learn more about API scopes](/docs/platform/your-signalwire-api-space).