Delete a WebSocket audio relay
Delete the relay. On a standalone `ws` session this **ends the session**
(equivalent to hangup) and emits a `session.ended` webhook. On a phone
call only the relay stops and the call continues.
**Triggered webhook:** `session.ended` for a standalone `ws` session.
A deliberate deletion does not emit `websocket_relay.disconnected`; deleting a relay on
a phone call emits no deletion webhook.
Authentication
AuthorizationBearer
Application auth. Send `Authorization: Bearer <app_uuid>:<api_key>` using any active key in the app's collection. See [Authentication](https://voice-platform.docs.buildwithfern.com/api/authentication) for details.
Path parameters
uuid
Session identifier.
Headers
Idempotency-Key
Optional key for safely retrying mutating requests. See [Idempotency](https://voice-platform.docs.buildwithfern.com/idempotency) for details.
Response
Command accepted for async execution
operation_uuid
status
already_ended
Optional. Set to true on idempotent terminal commands when the session was already in a terminal state at the time the request was received. Absent otherwise.
Errors
400
Bad Request Error
401
Unauthorized Error
404
Not Found Error
409
Conflict Error
413
Content Too Large Error
415
Unsupported Media Type Error
422
Unprocessable Entity Error
429
Too Many Requests Error
500
Internal Server Error
503
Service Unavailable Error