ȭ ɻ 糭ڸ ߴ ε鵵 ‘’ ġϸ 糭ڸ ְ ȴ.
δ 13∼19 ̵Ż 3 糭 3G ȭ Ϻ 4G ȭ ġ ϴ ȫȳ ڸ Ѵٰ 12 .
糭ڴ εijƮ(Cell Broadcast) 2005 2G ȭ ó Ե ʱ ٸ .
2009~2013 õ 3Gȭ Ҹ 糭 ž ǹ DZ 4Gȭ 簡 ž ʴ 糭ڸ ߴ.
̿ Ⱥδ ‘’ ·, 糭 ȭ ġ 糭ڸ ְ ߴ.
ġ ȳڴ 3Gȭ 糭 Ϻ 4Gȭ ȭȣ 13~19( ) 10~17 8ȸ ð ̸ ΰ ۵ ̴.
‘ 糭 ȵǸ ġϽʽÿ’ ۵ȴ.
ȳڸ ȭ ڴ ÷̽(ȵ̵), ۽() ‘’ 糭ڿ ϰ 糭 ƺ ִ.
ȯ漳 Ǵ ϴ 糭 ִ.
Ⱥ 糭 “糭ڰ Ȳ ż ϴ ʿ ŭ ε ġ ” ߴ.
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