Invention Grant
US07848760B2 System and method for presence alarming 有权
用于存在报警的系统和方法

System and method for presence alarming
Abstract:
A telecommunications system includes a wireless device (150) including a positioning controller (504) and a communications controller (502), said wireless device adapted to cause an audible warning to be generated if said wireless device is determined to be outside a first predetermined range; and an administrative device (30-152) for receiving alerts from said wireless communication device via said communications controller when said positioning controller determines that said wireless device is outside said first predetermined range for longer than a predetermined period or is outside said first predetermined range and a second predetermined range.
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