vocapableworkspace_recording_voice_unavailable
The line has no published call flow with an AI receptionist whose voice can speak the announcement; choose announcement_voice: carrier or publish one.
Problem shape
Every non-2xx response is an RFC 9457 application/problem+json body. The type URI below is stable and machine-matchable, so branch on the final path segment (the code) and treat the status as redundant confirmation. See the error-handling guide.
{
"type": "https://docs.vocapable.com/errors/workspace_recording_voice_unavailable",
"title": "…",
"status": 422,
"detail": "…",
"instance": "/v1/…"
}