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![](https://files.manualsfile.com/57124311-ktp02/bg26.png)
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4.2.5 Calling from VTO
Dial VTH room number (such as 9901) on VTO to call VTH.
On the VTH screen, tap Answer.
Call from VTO
Table 4-2 On-screen icon description
Key Description
/
Remotely unlock the door where the VTO is installed.
The system provides 2-channel unlock. If the icon is gray, it means that the unlock
function of this channel is not available.
Tap to talk to the VTO.
Select an IPC in Favorite to monitor.
Take snapshots.
This key will be gray if SD card is not inserted.
Take recording. Complete recording when the call is completed or by tapping
.
This key is gray if SD card is not installed.
Videos are stored in SD card of this VTH. If the SD card is full, the earlier videos
will be covered.
Mute.
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