用户线 Traditional form: 用戶線 Pinyin (reading): yònghùxiàn Definitions: subscriber line Characters: 用 - to use, to employ, to apply; use 户 - door; family 线 - line, thread, wire; clue, trail Traditional characters: 用 - to use, to employ, to apply; use 戶 - door; family 線 - line, thread, wire; clue, trail