From: Randy 

Glenn Meadows wrote:
> Jamming/block.  Like many theaters are doing now.
>
> I walk into a local cinema, and my cell phone goes from full 6 bars to no
> service, in the space of 50 feet, from the lobby to into the theater itself.
>
If the blocking is passive (Faraday cage) they're probably ok-but if it's
active (jammer) I think the FCC has something not nice to say about that.

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