As a journalist, cold calling people is part of the job, as well as answering calls from unknown numbers. So, as a veteran of the cold-call art, let me give you my simple, polite tip: Just say, "Is ...

Teenagers can seem to have their phones glued to their hands—yet they won't answer them when they ring. This scenario, which is all too familiar to many parents, can seem absurd and frustrating, or ...