If you need to make a call and your iPhone is not nearby, you can use your iPad or Mac instead, thanks to a feature known as iPhone Cellular Calls. It's part of Apple's Continuity system, which syncs and shares certain features for iOS, Apple Watch, and Mac, as well as Handoff and Universal Clipboard.
As long as your iPhone and you are not too far away Set up both your phone and tablet with the right options. Your iPad can be used for phone calls. And if your iPad is not around, but you are sitting in front of your Mac, you can make and receive calls in this way. Let's see how it all works.