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6
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3. Auto call back
1. Adjust ringtone volume
After 1 and 2 setups, DF7 can apply a calling from DF7, simulator a call from
door station.
When power up and standby (DF7 is screen off), press and hold for 3s
until ashes.
2 levels adjustable. When standby, into main menu, tap refers to
switch the volume between large and small.
User personalization setup
Press and hold Release
VER 01.01
ADDR 01.01
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