TeleSex. Twenty-five years ago I also called it “Techsex” and “Telegasm” – remote-responsive and media-responsive electronic stimulation.
Consumer-level net sex:
Wired calls it Teledildonics – a product suite from Japan:
“Unlike HighJoy and Sinulator which connect two people’s sex toys in real time over the internet, the Segment system combines video and tactile input into a single file that your fans — or your lovers — can play back at their leisure.”