curl --request GET \
  --url https://api.telli.com/v1/phone-numbers \
  --header 'Authorization: <api-key>'

{
  "data": [
    {
      "type": "PhoneNumber",
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "phoneNumber": "<string>",
      "inOutboundPool": true,
      "phoneNumberType": "local",
      "createdAt": "2023-11-07T05:31:56Z"
    }
  ]
}