The idea for caller ID emerged in 1968, but wasn’t perfected and widely used until the 1980s. The technology had to go through many different engineers and developers, who eventually were able to perfect it.How excited were you when Caller ID first emerged on the scene? It probably began with a special, separate unit, then found its way onto your cordless phone. And now, every smartphone has it.The advent of Caller ID meant that long gone were the days of screening calls and letting it go to your answering machine to decide if you wanted to answer the call or not.After all, who wants to answer a call from a telemarketer when you’re waiting for a call from your best friend so you can discuss the latest happenings on “Bandersnatch”?Usually with caller ID, if a phone number is already in your contacts, you’ll see the person’s name and number, and it might include a profile picture, too. But what about the numbers you don’t recognize? How can you tell if it’s someone you need to call back or not?
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