Advantages

Under strong encryption and authentication.

Static public IP addresses are not needed.

Resolution services such as DynDNS are not needed.

Full control of network access.

Full compatible: ADSL, Fiber, Satellites, Cellular.

Resolution services such as DynDNS are not needed.

Each device its own fixed IP address within its own private network.

Server in the Cloud or in your own Data Center (on-premise).

Compatible with any mobile operator globally.