1. Inside the box, you will find 1 x Grandstream device (Pictured below) with a Blue port and a Green port, along with a Blue cable, a Gray cable and a power supply.
  2. Connect the power supply to the Grandstream device and into an electric socket.
  3. Connect one end of the Blue cable to the Blue port of the Grandstream device and the other end to the Internet Router.
  4. Next, connect one end of the Gray cable to the Green Port of your Grandstream device and the other end to your Analog Phone.

Images of the device below as well: