call.transferred

When: An agent or supervisor moved the call to another agent, or to a free agent of a queue (to_queue_id set), or assigned a waiting call to an agent (from_agent_id null). An IVR sending a call to a queue is not a transfer: that sends call.ivr.completed, then call.queued or call.assigned

Extra data: from_agent_id, to_agent_id, to_queue_id

Example

Headers: X-Calloop-Event: call.transferred, X-Calloop-Event-Id, X-Calloop-Signature (verifying).

{
  "event_id": "7c0b1e0c-8a45-4c1b-9d4c-0f3a6a2f9b11",
  "event_type": "call.transferred",
  "api_version": "2026-09-25",
  "occurred_at": "2026-09-25T10:05:12.000Z",
  "tenant_ref": "biz-123",
  "data": {
    "call": {
      "callId": 42,
      "callUuid": "00000000-0000-0000-0000-000000000042",
      "tenantId": 1,
      "tenantRef": "biz-123",
      "channel": "WHATSAPP",
      "channelId": 1,
      "channelAddress": "+442079460000",
      "channelRef": "support-line",
      "queueId": 1,
      "direction": "INBOUND",
      "status": "IN_PROGRESS",
      "state": "ACTIVE",
      "mediaTopology": "ROOM",
      "customer": {
        "address": "+447700900123",
        "addressType": "E164",
        "name": "Test Customer"
      },
      "agentId": 8,
      "agentRef": "user-8",
      "agentName": "Agent Two",
      "externalRef": "crm-call-42",
      "providerCallId": "wacid.HBgL...",
      "ivrFlowId": null,
      "ringingAt": "2026-09-25T10:00:00.000Z",
      "answeredAt": "2026-09-25T10:00:06.000Z",
      "endedAt": null,
      "terminationReason": null,
      "terminatedBy": null,
      "durations": {
        "ringing": 0,
        "call": 0,
        "queue": 0
      },
      "failureDetails": null,
      "consumerMetadata": {
        "crm_contact_id": 991
      },
      "createdAt": "2026-09-25T10:00:00.000Z"
    },
    "from_agent_id": 7,
    "to_agent_id": 8,
    "to_queue_id": null
  }
}

data.call is the full call at that moment — the same view GET /v1/calls/{callId} returns. Apply events by "latest occurred_at wins": they can arrive out of order.