Yes, it is possible. You see, our technologically developed world has many different gadgets and communication devices except mobile phones and smartphones. All of them differ from each other very much but also all of them have one thing in common: they are using wireless signals to operate, no matter what frequency band those signals have.
As an example of my words you can look at the articles about T-Mobile Springboard and different docking stations for mobile devices. These are various gadgets which are neither mobile phones nor smartphones but are mobile communication devices using different frequency bands in their everyday operations. And you can jam their signals if needed.
In order to completely block all variety of electronic devices, cool gadgets and all their signals you can use jammers to fit any taste!
answered Nov 11 '11 at 12:28