These gateways are provided by "Intermediary Servers", and they can be transparent to the user or they can process documents on the fly. So you can choose what you like and what you don't, a feature that can either be used for security or for really huge reduction on your bandwidth bill.
Volo Author is a p2p file sharing software application.
When offline sharing options, online sharing are ruining p2p transfers for me. Why? Let's see some figures https://fluxmasdega.weebly.com