https://ieikm.khu.ac.kr/forums/topic/how-do-i-connect-to-robinhoodcall-%ef%bc%91%e3%83%bc%ef%bc%98%ef%bc%98%ef%bc%98%e3%83%bc%ef%bc%98%ef%bc%96%ef%bc%90%e3%83%bc%ef%bc%92%ef%bc%99%ef%bc%94%ef%bc%98/