curl --request GET \
  --url https://api.voxo.co/v2/admin/phonebooks/{id} \
  --header 'Authorization: Bearer <token>'

{
  "id": 123,
  "tenant": {
    "id": 123,
    "name": "<string>"
  },
  "name": "<string>",
  "includeExt": "<string>",
  "provisioning": 123,
  "contacts": [
    {
      "firstName": "<string>",
      "lastName": "<string>",
      "phone": "<string>",
      "email": "<string>",
      "routeTo": "<string>",
      "speedDial": "<string>"
    }
  ]
}