luójiliànlùkòngzhì
ㄌㄨㄛˊ ˙ㄐㄧ ㄌㄧㄢˋ ㄌㄨˋ ㄎㄨㄥˋ ㄓˋ
Simplified 逻辑链路控制
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 邏輯鏈路控制 and it comes back until you know it.