receptionist_capacity_unavailable
Inbound session redemption could not reserve receptionist capacity. The company or platform lane is busy; the call is not activated using outbound capacity. Ingress normally handles this earlier through the answering policy's next step or the direct route's finite fallback.
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_capacity_unavailable",
"title": "…",
"status": 409,
"detail": "…",
"instance": "/v1/…"
}