March 2022
Beginner to intermediate
250 pages
7h 54m
English
Many families spend a good portion of the day away from each other—perhaps with kids shipped off to school and one or both parents at work. If anything unsettling happens during that time, the universal instinct is to grab a cell phone, check in on each other, and decide what to do. But if at that very moment, all your cell phone can muster is “no service” or “call failed,” you might find yourself in a tough spot. After all, we no longer have phone booths on every corner, and most homes don’t have a landline to try.
There’s no doubt that wireless telecommunications infrastructure is prone to disruption too. The ...
Read now
Unlock full access