It’s at the point where when the phone does ring — and it’s not my mom, dad, husband or baby sitter — my first thought is: “What’s happened? What’s wrong?” My second thought is: “Isn’t it weird to just call like that? Out of the blue? With no e-mailed warning?”
“Phone calls used to be everything: serious, light, heavy, funny,” Mr. Burnham said. “But now they tend to be things that are very focused. And almost everyone e-mails first and asks, ‘Is it O.K. if I call?’ ”
Telephones were first sold exclusively for business purposes and only later as a kind of practical device for the home. Husbands could phone wives when traveling on business, and wives could order their groceries delivered. Almost immediately, however, people began using the telephone for social interactions. “The phone companies tried to stop that for about 30 years because it was considered improper usage,” Dr. Fischer said.