Annual DDNS Only AgreementAn annual charge for a DDNS service (provided by a third party) which provides seamless remote access to your CCTV system using the Hik Connect or iVMS 4500 app. A DDNS service will allow you to access your system from anywhere in the world and it will also allow us to support you remotely (if required subject to charge). What is a DDNS? A DDNS solves the problem of your external IP addresses ever changing by associating your address with a consistent