Martin, I would also like more info on your product, if it's ready to deploy or still in development.? It makes sense that your described solution is not "off the shelf" as I wasn't aware of boxes that did what you are describing.
Yes, business are blocking some of the remote access software now days.? Randomly seeing TeamViewer blocked the most.? Some places are also blocking file sharing sites like Dropbox and Box making sending revisions to tech's a bit more difficult as well if they are operating off the client network.? I have Tech's that I work with that we've had to try several different software to get a connection going, first TeamViewer, if that's blocked, then RemotePC, if that is blocked, then Bomguard or AnyDesk, or UltraViewer or...?? I had to start researching different options from TeamViewer a couple years ago when I started running into more sites that had it blocked.? Now I have several options to use, and usually the lesser known ones aren't blocked (yet).
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Jason Mussetter
Control Systems Designer
Mussetter Programming Services
www.mpsav.com