Interesting to read that it was done via ISDN.
Next step is VST Connect, I believe/hope.
I have always been unhappy with ISDN, the lines are unreliable, expensive and compatibility with different units from various manufacturers have given me some headaches over the years. Also I have seen audio quality as a problem in some cases.
Would be nice to see Steinberg’s alternative in such scenarios. Maybe it could also help to connect Nuendo users around the globe (just as this forum does)
Ollie