19
Figure 4-7
Icon
Icon Name
Note
Unlock 1
VTO config electric control lock, click
, unlock.
Unlock 2
If this VTO has 485 expansion interface, it
can expand electric control lock or door
sensor lock, after successfully matching
with VTH, click
, unlock.
MIC
Click
, turn off MIC volume.
IP Camera
Click
，
select IPC video of
monitoring favorites.
Snapshot
Click
，
to snapshot.
Note:
When SD card is not installed, this button is
grey.
Record
Click
，
record
；
call ends, click
end recording.
Records are stored to SD card of this VTH,