curl --request GET \
  --url https://api.itellico.ai/v1/accounts/{account_id}/phone-numbers \
  --header 'X-API-Key: <api-key>'

{
  "count": 123,
  "items": [
    {
      "id": "<string>",
      "number": "<string>",
      "sip_trunk": {
        "id": "<string>",
        "name": "<string>"
      },
      "inbound_agent": {
        "id": "<string>",
        "name": "<string>",
        "avatar": "<string>"
      },
      "spam_data": {},
      "friendly_name": "<string>",
      "tellows_data": {}
    }
  ]
}