curl --request POST \
  --url https://api.callers.ai/admin/organization/{id}/external-sync \
  --header 'Content-Type: application/json' \
  --header 'X-Sync-Secret: <api-key>' \
  --data '
{
  "limits": {
    "outgoingLimit": null,
    "incomingLimit": null
  }
}
'

{
  "success": true
}