From back when telephones were new and scary
May 27th, 2004
Let the smooth slab serifs of Lubalin Graph help teach you How To Make Friends
By Telephone. “Be sure to give the person you’re calling sufficient
time to answer his telephone. Wait at least a full minute.”
Also: “You would not interrupt in a face-to-face conversation and the
same applies to a telephone conversation.” [more info]