shùzìyònghùxiànlù
ㄕㄨˋ ㄗˋ ㄩㄥˋ ㄏㄨˋ ㄒㄧㄢˋ ㄌㄨˋ
Simplified 数字用户线路
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 數字用戶線路 and it comes back until you know it.