Get extension data by account ID and extension number

Example response

{
  "_embedded": {
    "data": {
      "caller_id": "John Smith",
      "dids": [
        {
          "custom_tag": "My Tag",
          "phone_number": "14155550100"
        }
      ],
      "extension_handsets": [
        {
          "handset_name": "line1-VH6370927",
          "sip_id": "VH16370927"
        }
      ],
      "extension_number": "789",
      "location_id": 145214,
      "user": {
        "email": "john.smith@example.com",
        "first_name": "John",
        "last_name": "Smith",
        "login_name": "jsmith"
      },
      "vtt_enabled": true
    }
  },
  "page": 1,
  "page_size": 10,
  "total_items": 100,
  "total_pages": 10
}