I recommend you also look into the Venux Operating System. It's kernel is currently in development, and soon the GUI for the Venux Explorer will start. I hope this is the system that gets fully integrated into the Atlas City, as its rather flexible as a system in what it can do.
http://rbefoundation.com/document.php?id=2
I think Atlas Initiative should run like a gigantic internal network, all problems stay isolated to one city, however its interconnected with other cities and their networks for a 24/7 FTP-Based Information Sharing (for a Knowledge Database), unless you know of a better way to transfer files and information faster, however I think its the actual networks and speed capabilities that slow things down when transferring via FTP.
Content Filtering supports censorship, at times its understandable such in the case of pornography, extremist sites, etc but generally I think the network itself should be extremely limited in what it will censor.
What do you mean by Voice Support? For the network or for us?
If we to run our own ISP, bandwidth management would not be needed as (if the bandwidth was to get too high and the network possibly crash) we would just simply add a new server and ports to it.