Reverse 1-1-2 is a public safety communications technology used by public safety organizations throughout the world to communicate with groups of people in a defined geographic area. Reverse 1-1-2 allows authorities to rapidly warn those in danger, directly through their mobile phones.
Reverse 1-1-2 is a public safety communications technology used by public safety organizations throughout the world to communicate with groups of people in a defined geographic area. Reverse 1-1-2 allows authorities to rapidly warn those in danger, directly through their mobile phones.
Source: Wikipedia "Reverse 1-1-2" · CC BY-SA 4.0
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