I am cleaning out my drafts folder and i found this gem of a story.
"The government's industry minister has approved a decision to let cinemas, concert halls and theaters install cell phone jammers -- on condition that emergency calls can still get through, officials said Monday."
Could you call someone in the same theater? I would say no, because the caller's cell phone has to contact the cell phone network and the cell phone network contacts the callee cell phone network. If you cannot reach the network, no calls will ever be placed. Even if you are able to reach the network, the network will not be able to contact the callee's phone.
Also how do you distinguish between an emergency call and a non-emergency call?