I remember being overjoyed when I got a similar setup (don't recall all the details now) running reliably at 9600 so terminals and faxes were pleasantly usable

I remember being overjoyed when I got a similar setup (don't recall all the details now) running reliably at 9600 so terminals and faxes were pleasantly usable (2400 is usable, but not exactly pleasant). 19200 was iffy and worked until it didn't (and I recall CPE sensitive) and speed beyond that was a non-starter. Too much time spent fiddling with this back in the day.