Cell phone jitterbug

May 11, 2009 at 08:51 AM Anonymous Says: I actually looked into it for my shul and currently the sale and use of cell phone jammers is limited to military and law enforcement entities only. .... That is why these systems are not legal in the US. A completely effective system would interfere with people outside the shul as well. In a congested neighborhood (like BP) the neighbors of the shul would probably be blocked as well. While I respect the right of the members of a ...