Advanced Mobile Location
Advanced Mobile Location (or AML) is an emergency location-based service (LBS) available on smartphones that, when a caller dials the local (in country) short dial emergency telephone number, sends the best available geolocation of the caller to a dedicated end-point, usually a Public Safety Answering Point, making the location of the caller available to emergency call takers in real-time. AML improves the time taken by emergency call takers to verify the location of callers and can improve the time taken to dispatch an emergency response.
AML was developed in the United Kingdom by British Telecom, EE Limited, and HTC as a solution to problematic caller location in emergencies. When a person in distress calls the emergency services with a smart-phone where AML is enabled, the telephone automatically activates its location service to establish its position and sends this information to the emergency services via an SMS. The services uses either a global navigation satellite system or WiFi depending on which one is better at the given moment. It was estimated that this technique is up to 4000 times more accurate than the previously used system. AML is being implemented in the UK by an increasing number of smart-phone manufacturers and mobile network operators: BT, the mobile networks EE, O2 and Three, together with Apple inc., HTC, Sony, Alcatel, and Samsung handsets, have already successfully implemented AML.
AML is deployed in Austria, Estonia, Lithuania, Belgium, Iceland, Finland, Ireland and New Zealand. Moreover, several countries around Europe are testing AML as a solution to problematic caller location in an emergency with the aim of deploying it by the end of 2018.
AML automatically turns on mobile data on the handset (which may lead to charges to the user), automatically contacts Network Time Protocol (NTP) servers and sets date, and sends IMSI/IMEI over unencrypted (but invisible to the user) SMS message.
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