MIT Technology Review Subscribe

Wireless 911

How emergency services will locate 911 callers who are using mobile phones.

Every year, more than 50 million 911 calls are made from mobile phones in the United States, according to the National Emergency Number Association. But unlike 911 calls placed from traceable landlines, wireless calls do not provide emergency call center operators with location information-a shortcoming that can hold up emergency responders. To avoid such delays, the FCC initiated a plan requiring wireless carriers to provide call centers with callers’ geographic coordinates, their mobile-phone callback numbers, and the locations of the towers or antennas receiving their calls, by 2005. Experts estimate that it will take longer for the nearly 6,000 U.S. emergency call centers to upgrade their technology to accommodate the two methods of location tracking-handset-based assisted GPS and network-based tower location-used by wireless carriers. Here’s how it will work.

Advertisement
This story is only available to subscribers.

Don’t settle for half the story.
Get paywall-free access to technology news for the here and now.

Subscribe now Already a subscriber? Sign in
You’ve read all your free stories.

MIT Technology Review provides an intelligent and independent filter for the flood of information about technology.

Subscribe now Already a subscriber? Sign in
This is your last free story.
Sign in Subscribe now

Your daily newsletter about what’s up in emerging technology from MIT Technology Review.

Please, enter a valid email.
Privacy Policy
Submitting...
There was an error submitting the request.
Thanks for signing up!

Our most popular stories

Advertisement