A ring check: the phone rings ring_sec seconds (default 2), then we hang up. The customer sees a missed call.
POST /v1/reachability-checks
  • detail says why (answered when the customer picked up anyway; that dial is priced as a connected call).
  • Priced on the missed_call line of your rate card (see Billing in the client portal); an unanswered ring usually costs nothing.
  • Up to 1000 numbers; your human calling hours and the daily cap apply.
  • Results: GET /v1/reachability-checks/{id}/results, reachability.result per number after the hangup, reachability.completed at the end.