OBS_VALUE: <ul><li><a href=http://www.law.go.kr/LSW/lsEfInfoP.do?lsiSeq=192302# target=_blank>Telecommunications Business Act(전기통신사업법, Enforcement Date: 1 September 1984 (Law No. 3686), last updated on 15 March 2018 (By No.14576), Article 39 & 40)</a></li><li><a href=http://www.law.go.kr/admRulLsInfoP.do?chrClsCd=&admRulSeq=2100000177209 target=_blank>Guidelines  for Interconnection of Telecommunications Equipment and Facilities (Public Announcement of the Ministry of Science and ICT, No. 2019-18)(전기통신설비의 상호접속기준, Enforcement Date: 4 June 2008, last updated on 22 March 2019)</a></li></ul>