{
  "request": {
    "method": "POST",
    "url": "https://api.telefon.com/v1/sms/messages",
    "headers": { "X-API-Key": "YOUR_API_KEY", "Content-Type": "application/json" },
    "body": {
      "to": "+4915123456789",
      "from": "+4930123456789",
      "body": "Your appointment is confirmed for May 5, 2026 at 14:00. Reply CANCEL to cancel.",
      "status_callback": "https://your-app.example.com/sms-status"
    }
  },
  "response": {
    "id": "SM9876543210fedcba9876543210fedcba",
    "status": "queued",
    "direction": "outbound",
    "from": "+4930123456789",
    "to": "+4915123456789",
    "body": "Your appointment is confirmed for May 5, 2026 at 14:00. Reply CANCEL to cancel.",
    "num_segments": 1,
    "num_media": 0,
    "price": null,
    "price_unit": "EUR",
    "date_created": "2026-05-03T10:00:00Z",
    "date_sent": null
  }
}