contact_not_dialable

HTTP 409§9.5 Campaigns, scrubbing, consent, and DNC

The number is suppressed and this request would contact it anyway. Raised today by POST /messages on an internal-DNC hit, and specified in §1 and §3 as the refusal an ad-hoc POST /calls or a test call returns, with blocked_reasons[] in errors[]. A refusal raised by a compliance-floor control is never waivable (§3).

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/contact_not_dialable",
  "title": "…",
  "status": 409,
  "detail": "…",
  "instance": "/v1/…"
}

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