DingTalk Lite

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[Video Meeting Code]
Every video meeting has a unique meeting code, including the scheduled ones.
Participants can join the meeting by entering the meeting code without invitation.

[Video Meeting Security Upgrade]
Host can lock the screen sharing to disable participants to share screen.
Host can lock the meeting to disable others to invite participants.
Host can set the meeting to be internal only, users not in this organization cannot join the meeting.