If I can talk about my new job, the difference is that when I walked into Hewlett Packard Enterprise I could click on a meeting, which would set up a video conference, would set up a voice call, or would set up a teleconference with one click through Outlook, through Skype for business.
There are technologies that are out there. Voice over IP is perhaps a little dated now, but I agree those are the kinds of things where government can really leverage, because they're technology things that don't affect systems directly day to day where these things can provide immense value.
From personal experience, I was shocked just how well this worked and it was all delivered in the cloud. Just to throw that out there, it wasn't even delivered internally by the HP company themselves.