As the U.S. wireless industry, in order for emergency personnel to better position users who dial 911 from their mobile phone indoors, they will increase the caller's position over the next six years. Historically, technologies such as satellites have helped emergency rescuers find Norway's callers, and fixed phones are often automatically scheduled to provide an address. However, incoming calls from mobile phones in the room have always been difficult to locate because the wall will weaken the signal. Verizon Communications, American Telephone and Telegraph, Sprint and Deutsche Telekom in the United States have reached an agreement to achieve 40% location-specific data within two years, achieving 80% specific location within six years The data.
The transaction marks a long-running job, as people rely more and more on mobile phones to help improve the location of first responders in an emergency. The U.S. Federal Communications Commission has been demanding technology to obtain data on 911 calls, including technologies based on outdoor location information. But technology is no longer sufficient to directly respond to a specific floor, a specific area of ​​a room or building. Networks and mobile phones that improve positioning accuracy and can support positioning will find a calling party by matching WiFi or Bluetooth connectivity to a special emergency services database to match a specific location recorded. Over time, wireless carriers plan to ensure that each handset can call a Bluetooth or WiFi connection in an emergency.

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