Ah, nostalgia - I came across this TechnoFile article by Jim Bray talking about the Broadband Phone project we did back in 2001/2. I'm sure I knew about the article at the time, but it had slipped my mind.

It was a fun project, the technology worked really well, and it is, alas, now confined to the annals of big-corporation history. Plus ca change, plus c'est la meme chose....