I was there also, 3 times. Milan, TN twice and Hartford.
I worked for ITT BCS 15 years. 3100, td100,OKI hated those dip switches, terryphone, and that junk from Spain(x-bar).
NY tel for 11 years, ITT for 15 and now a NJ company for 20. Is there anything left ? LOL


New York Telephone 1961-1972
ITT BCS NJ 1972-1987
Johnston Comm NJ 1987- ?