[emeritus]

That reminds me that the modem we had at Plessey in 1969 to access a timeshare computer (GEIS) via a Teletype terminal was one where you had to put the phone handset in a cradle. I don't recall if it was a special phone or how it was used. Because we had had problems with the clicks that were generated when the site operator listened in corrupting our data, it was given a direct line, making it popular with engineers who wanted private conversations with girlfriends.