Android: Swipe down from the top of your screen -- to access the Quick Settings panel -- and then tap the Airplane mode icon.

If you often are in an area with poor cellular reception a cell signal booster might be a good way to go. Here's everything you need to know.

See how two strategically applied strips of common household tape may fix the signal glitch experienced by some iPhone 4 users.

A BusinessWeek article purports that Apple is currently testing a fix for widespread loss-of-signal, poor signal and fluctuating signal issues with the iPhone 3G.