Dahua Technology VTH2421FW-P - Visit Records

Figure 4-15 Visitor pass
Step 3 Tap Send to Visitor to send the QR code to the visitor.
Tap Save to save the QR code to your smartphone.
Step 4 (Optional) Tap Invalidate to cancel the appointment, and then the QR code will not have
access permissions.
Tap Invite Again to generate a new pass for the visitor.
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