Ian.CuiYi
Shayanne Gal/Business Insider
Eric Lafforgue/Art in All of Us/Corbis via Getty Images

The traditional way to make a cellphone call is for your handset to ping whichever base station you’re closest to, with your voice and the voice of the person you’re speaking to flying through the air via radio waves. However, there might be times when the signal between your phone and the base station is weak, or…
Christina Kochis
Wirestock
Courtesy of Jason Roth
Vince Talotta/Toronto Star via Getty Images
Arantza Pena Popo/Insider