List Available Numbers

curl --request GET \
  --url https://api.selcor.ai/v1/voice/phone/available \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "phoneNumber": "<string>",
      "friendlyName": "<string>",
      "locality": "<string>",
      "region": "<string>",
      "postalCode": "<string>",
      "capabilities": {
        "voice": true,
        "sms": true,
        "mms": true
      }
    }
  ],
  "request_id": "<string>"
}