[gerdesj]

"How much did a phone call cost per minute from UK to Australia in the 70's and 80's ?"

I think around £5 per minute or more. A quick search found this: https://www.austehc.unimelb.edu.au/tia/576_image.html#Table%... so my memory is not too far off and that is the other way. Bear in mind that a squid (£1) was worth rather more in the '70s, than now.

A circuit switched call in the '70s - '90s (at least) within the UK was nigh on perfect. There was no noticeable latency. Call quality was way better than a modern Teams or Zoom call (with no video). Your £500 laptop has shit microphones and speakers but you do insist on not using them like a "dog and bone" but instead as a "comms solution".