통화내역 조회

Let’s take a quick look at how to view the call history of the 3 telecommunication companies (SKT KT LG) cell phone (mobile phone) and how long it is available.   ▶ Up to how long can I inquire? KT – last 3 months SKT/LG – last 12 months ▶ Can I query the period … 더 읽기