Phone-tracker to protect lone women

The British Telephone Service (BT Group) has developed a Walk Me Home tracker that will allow women to be connected to a GPS tracking system while walking.
Users of the service, which can be accessed by any network, will be able to enter their home address and other destinations into the mobile phone. Before walking, you need to launch the application, call or send a text message to 888. This will allow the tracker to start GPS tracking. Calculating the approximate travel time, the application will make a call when the user should already be at the destination. If there is no answer, then the tracker calls emergency contacts, and then the police.
BT Group management noted that they began to develop a tracker application after the murders of women on the streets of London.