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![](https://files.manualsfile.com/48136844-ktd02/bg64.png)
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Figure 4-7 A call from a VTO
4.4 Monitoring
Background Information
After a VTO is added, you can view its live video, have two-way audio talk, call management center,
and remotely unlock the door.
Procedure
Step 1 Log in to the app, and then tap
Monitor
.
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