curl --request POST \
  --url https://api.messaging.phonovation.com/sms/2/binary/advanced \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "bulkId": "BULK-ID-123-xyz",
  "messages": [
    {
      "binary": {
        "dataCoding": 0,
        "esmClass": 0,
        "hex": "54 65 73 74 20 6d 65 73 73 61 67 65 2e"
      },
      "callbackData": "DLR callback data",
      "destinations": [
        {
          "messageId": "MESSAGE-ID-123-xyz",
          "to": "353861234579"
        },
        {
          "to": "353861234582"
        }
      ],
      "from": "InfoSMS",
      "intermediateReport": true,
      "notifyContentType": "application/json",
      "notifyUrl": "https://www.example.com/sms/advanced",
      "validityPeriod": 720,
      "campaignReferenceId": "summersale"
    },
    {
      "binary": {
        "dataCoding": 0,
        "esmClass": 0,
        "hex": "41 20 6C 6F 6E 67 20 74 …20 45 6D 70 69 72 65 2E"
      },
      "deliveryTimeWindow": {
        "days": [
          "MONDAY",
          "TUESDAY",
          "WEDNESDAY",
          "THURSDAY",
          "FRIDAY",
          "SATURDAY",
          "SUNDAY"
        ],
        "from": {
          "hour": 6,
          "minute": 0
        },
        "to": {
          "hour": 15,
          "minute": 30
        }
      },
      "destinations": [
        {
          "to": "353861234578"
        }
      ],
      "from": "353861234578",
      "sendAt": "2021-08-25T16:00:00.000+0000"
    }
  ]
}
'

{
  "bulkId": "2034072219640523072",
  "messages": [
    {
      "messageId": "2250be2d4219-3af1-78856-aabe-1362af1edfd2",
      "status": {
        "description": "Message sent to next instance",
        "groupId": 1,
        "groupName": "PENDING",
        "id": 26,
        "name": "PENDING_ACCEPTED"
      },
      "to": "353861234579"
    }
  ]
}