It's used for urgent notification of the public by the Norwegian government and municipalities. It's also very easy to accurately target specific areas as all t

It's used for urgent notification of the public by the Norwegian government and municipalities. It's also very easy to accurately target specific areas as all the numbers are registered with the address of the owner. The benefit is that you don't need any infrastructure except for the phone network so there are very few servers that can go down etc. Edit: I see my error!, Yes it's not a source. Never mind my comments :)