On Monday, February 19th, 2024 at 12:03 PM, Åke Nordin <ake.nordin(a)netia.se> wrote: From the article: I find this curious and wonder if Ken or someone else would have commentary on what sort of modem connection was actually in use? When I read that, my mind immediately went to the 300-baud WECo Data Set I've been experimenting with lately, I would imagine Bell Laboratories researchers had access to the cream-of-the-crop modem technologies coming out of WECo, or perhaps even experimental designs not yet mass-produced by WECo. Just the speculation my mind went to though. I know in later Bell System advertising and other visual content it is all too common to see the smaller Data Set units with their 6-button *500-series phones neatly nestled in next to whatever terminal was in use. Then going back further, you had the large Data Set units that mounted up inside the teletype frame. I seem to recall Clem Cole mentioning to me that the specifics of utilizing modems with terminals at the time were a little odd potentially due to rules on who could run wire for what in buildings, leading to modems being used where a serial connection would make more sense or vice versa but as with many things, I wasn't there and can't speak to specifics. - Matt G.