curl --request POST \
  --url https://api.open.cx/phone/outbound-call \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "phoneAgentId": "<string>",
  "contact": {
    "id": "<string>"
  }
}
'

{
  "error": {
    "code": "<string>",
    "status": 123
  },
  "result": "<unknown>"
}