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![](https://files.manualsfile.com/25952974-vth8a21kms-cw/bg7.png)
2
Remote unlock
Unlock doors remotely.
Arm and disarm
Arm the VTH to enable alarm function in the protection zone, and disarm the function when you do
not need it.
Message check
Check text messages and videos left by visitors, or public notices released by the management center.
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