I use Content Filter, NAT Rules with port forwarding, traffic control, Bandwidth optimization. I have vCenter Esxi, implement it there, it works excellent. Everything is good.

The software integrates with exchange allowing users to fax from anywhere.

It is very easy to set up and have your bandwidth under control within just a few minutes of installing the appliance. You tell the appliance how much bandwidth you have allowed to you by your ISP, and from there, you can start carving it up how much you want or need to allow for the different types of traffic you need to manage. You can also set the priority for each type of traffic. For instance, if you have a hosted VOIP solution, you can make sure that it is top of the list and always prioritizes over everything else. You can also drop types of traffic as well. If you do not want P2P traffic on your network, you can define a rule to drop that traffic when it occurs.