![background image](http://html2.mh-extra.com/html/v-tek/df4/df4_manual_4545066002.webp)
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2
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Parts and function
Backlight LED
Doorbell button
Talk voice
volume jumper
4.3 TFT display
Mute indicator
Divert indicator
MIC(bottom)
Touch keys
BUS line
Speaker(side)
Talk voice volume jumper: the volume of the speaker voice when talk
with door station, plug in means high, remove means low.
Talk/Monitor
Scroll down
Unlock
Mute
Scroll up
Divert
sw+
sw-
L1,L 2
VO L
M
MOODDEELL..DDFF44--W
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Series Number: 1230700001