receptionist_release_not_qualified
The selected immutable receptionist version has not been qualified for live calls (or is draining). The control plane refuses to arm an AI route, and carrier ingress uses its deterministic spoken fallback instead.
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/receptionist_release_not_qualified",
"title": "…",
"status": 409,
"detail": "…",
"instance": "/v1/…"
}