Jamming the signal in the car may seem like a good idea at first glance, but in cases where someone is driving observing a crime in progress or other safety situations where it is necessary to use the phone, it is not such a good idea. There are better ways that can be developed. I think that the matter has been publicized in the media and safety awareness itself is a help. Text messaging I think should be halted completely while driving -- sorry passengers. Beyond that, we have to THINK about the possible dangers and consequences of how we use our cell phones and act accordingly.

It's not so much the talking on the phone. It's the idiots who look at the phone to dial or whatever. Hands free seems OK. As for jamming, it's not permitted by law in the U.S., but a modern car could be made so that it tells the phone via bluetooth to disallow the keys while the car is in motion. A modern phone could have a 911 key to call police for emergencies while the car is moving, but other functions would be disallowed, even if the subscriber told the phone to turn the BT off. Not everything that is "off" is really "off".

Here in the UK it is illegal to hold an active phone in your hand whilst driving a car. Integrated hands free is OK. Hey guys, it works, go do it. Speaking as a guy who was tail ended by a jerk on a phone who wasn't looking out his window, I have to admit that the rule should be that your eyes need to be out the front window at all times as that's where most of of the dangerous thing are!

The other angle is that the car could be the one place in your life when you can hide from the damn phone and listen to some good music and enjoy your short life. If you use a handheld phone in a car your life might be shorter than you expect!

Dave

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jam the signal in the vehicle. That will solve it.