Numerous guangdong-based websites would be delighted to ship you a cell phone jammer in exchange for a couple hundred bucks. What those sites artfully neglect to mention-or at least bury in the teensiest of fine print-is that the moment you activate one of their devices inside the US, you're breaking the law: Interfering with wireless communications is a federal crime. But there are ways to retake control of your office without becoming a crook. Start by reassessing your cell phone usage policy, which might be either too draconian or too opaque.
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