4 FAQ
Q
：
The screen of VTH is black, and the indicator remains off, what should I do?
A
：
Check the connection of network cable.
Q
：
I cannot call or monitor via the VTH, what should I do?
A
：
Check the connection of network cable, and confirm if the corresponding door
station is working as normal.
Q
：
When there is incoming call from door station, but the ring is not working, what
should I do?
A
：
Confirm if you have turn on DND function.
Q
：
I have other problems, what should I do?
A
：
Please contact technical staff for further assistance.
