Have you noticed how scarce the teleconferencing materials are? especially for higher levels. And for one-to-one? A struggle!
but while I was looking for some decent materials and came across this:
it can be called authentic material, but it’s not a usual videoconference vide0 – it looks more like a stand-up comedy thing. It’s David Grady’s “conference call”, and it’s brilliant – for a start, and for some advanced students who are experienced in teleconferencing.