Product Structure 5
If this indicator turns on, it represents normal
communication with VTO.
If this indicator turns off, it represents abnormal
If this indicator turns on, it represents that there are
unread messages.
If this indicator turns on in green, it represents that DND
function is enabled.
For DND settings, please refer to “6.2.2 DND Settings“.
Table 2-4
Figure 2-5 VTH15 Series Type B
Press this key to call the Call Center in case of
emergency.
Press this key to return to main menu.
In case of incoming call, press this key to answer
the call.
During talk, press this key to hang up.
During monitoring, press this key to speak to
apartment VTO, villa VTO and fence station.
During speaking, press this key to exit speaking.
In standby mode, press this key to monitor the
main VTO.
During monitoring, press this key to exit monitoring.
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