I remember the days of surprise phone calls, and enjoyed them because there really weren't other forms of distraction. People usually called because they were interested, not always because they needed something or to work out the logistics of something else.
Today, surprise phone calls seem unwanted because we already have other devices beeping, vibrating, and popping up at us constantly. Because people overshare their lives on social media, few talk one-on-one to ask each other how they are doing. When they do call, it's because they need something, or because of bad news, like a relative dying.