Vonage and adsl Alice Italia telecom?

[monroe2610]

Hi, I just have a wireless laptop, my alice italia telecom modem and the vonage modem and phone. What I did was I have a phone line that splits into the telecom and phone via a small box. The ph line goes to the phone and the telecom line goes to the alice modem. I use no username or pass to get online, my computer is wireless and automatically connects. Now I have the vonage blue cord running between the vonage box and the modem and the telecom line running into my modem, and the vonage box works, showing the little ph symbol. But when I hook my phone into the port it says error phone plugged into wront port (for both ports). I now have the vonage blue cord hooked up and the modem and box plugged in and the internet works, but my phone screws it up. What am I doing wrong???