3.6 DND Function
Under standby status, you may turn on DND function by long pressing call button for 5s;
meantime the screen turns on, there will be corresponding message at left middle position.
Under DND, when door station calls, you may use the video function without incoming ring.
You can connect and start to talk by pressing call button.
Note: For program of some versions, under DND status, message will directly
inform you that VTH is busy.
The default DND is 8 hours, and after 8 hours, it will be automatically canceled. To
manually turn off DND: under standby status, long press call button for 5s to turn it off.
3.7 View Announcement
When there is no alarm, VTH receives message sent from platform, and the indicator
flashes slowly. By pressing monitor button, you can view announcement which is added in the
video on door station in rolling display. You can exit announcement viewing by pressing
monitor button again.
Note: When there is alarm, you must confirm the alarm before viewing
announcement.
3.8 Alarm Function
3.8.1 Arming/Disarming Function
3.8.1.1 Arming/Disarming Strategy
Step 1. Under standby status, you may enter main menu by pressing menu.
Step 2. Repeat pressing menu button, select to set menu item. Press call button to enter
setup interface.
Step 3. In setup interface, press menu button, to select alarm zone to set. You can press
monitor or unlock button to switch arming type. Press call button again to select alarm
zone (check as selected).
Step 4. Press menu button, select alarm delay. By pressing monitor or unlock button to select
alarm delay length. Max alarm delay is 120s.
3.8.1.2 Arming/Disarming
Default setup is arming status.
VTH1200-CS
Under arming status and standby interface, long press menu button for 5s, device enters
disarming status. Screen turns on. It shows disarming prompt at the left and turns off light (no
