Mobile phone conversations on buses, at train stations and in restaurants can be distracting to other people and they can even create public safety concerns for law enforcement, but is it ever OK for a third-party to block those calls?

The issue has been getting extra attention of late amid a Philadelphia man's use of a mobile phone jammer on a bus and the Federal Communications Commission's request for public comments about whether law enforcement should be able to shut down mobile networks in certain situations.

According to the Los Angeles Times, there's a good reason people get disturbed by the chatter around them.

Researchers at Cornell University found that hearing half of someone's conversation distracts people and can actually lower their cognitive ability, and they are available to use mobile phone signal jammer in public place.

Apparently, people have a hard time ignoring what the researchers called a "halfalogue." They said it's because people can't predict the speech pattern of a halfalogue like they can with a monologue or two-way conversation.