It never fails: Just as you sit down to enjoy a nice meal with the family, your phone rings. Sigh. Even more annoying is the fact that a glance at your smartphone screen doesn’t show who’s calling.

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. The iPhone has a new feature that screens unknown callers. Etiquette has shifted so people think they need to text first before ...