Sound duties are taken care of by using the existing hardware set-up used for data modes, the software used is Skype, freely available, and free to use between skype to skype accounts, one set up on each laptop, base and remote.
This does work, though I find that the connection is quite laggy, and the desktop image shown is not the clearest, also the audio on receive can be somewhat choppy at times.
Earlier this week I had a long and interesting qso with NZ5E, Terry, in Arkansas, he is using the same radio as me, but remotely, we talked a lot about a beach buggy he and his son have restored, it wasn't until after we said 73, that I realised that I hadn't asked him exactly how he was running his remote station.
Well today I happened across two local friends of mine on the air, G0VQY, Penn, in Brixham, and my radio club pal, G2DXU, Alan, in Torquay, they had been working some Stateside on 17m, and so I joined them, well by chance Terry, NZ5E returned Penn's CQ, and I was fortunate to get to ask Terry exactly what he was using to remotely control his station.
He was using the Microbit RRC-1258 system.
No computer connection is required, I think the next picture explains..
I am hoping as there is no 'video' connection, only audio and radio command that the bandwidth demand on the internet connection will less.
Also my thoughts are you could then use your home station when truly on the move, for example in the car ?!