Definitely a good idea. If you're targeting people who are new to VoIP, you want the setup to be painless. "Plug the box in to your internet connection, plug your phones into the box, and run the initial setup/activation in your user portal/vPanel."

I'd go one slight step further in suggesting that the default values in the activation wizard be the most popular choices or dependent on the user's service address, as appropriate. In particular, the default time zone should be based on the service address. Other defaults would be by 'popular demand' such as number of lines per page for call records, etc. You should also make it clear how importan the user's "PIN" is, as it's needed for a vPanel password reset.