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USING THIS STATION
Communication using touch-to-talk
Touch-to-talk is a method of communication in which manual 
control of incoming and outgoing audio is used. Touch-to-talk 
is recommended in loud or noisy environments. 
While in communication, tap  .
The touch-to-talk method will be enabled.
 To speak, tap  .
The   will change to  .
*  Entrance station or guard station audio is muted.
 To listen, tap 
.
*  The   will change to  .
*  Residential/tenant station audio is muted.
Adjusting the screen brightness
1  Tap  .
The brightness adjusting bar will be shown.
2  Tap
 
+
 to adjust the screen brighter, and   
to adjust the screen darker.
The default value is 3, with a minimum of 1 and a 
maximum of 5.
Adjusting the receiving volume
The receiving volume can only be adjusted while in 
communication.
1  Tap  .
The volume adjusting bar will be shown.
2  Tap
 
+
 to adjust the volume higher, and   to 
adjust the volume lower.
The default value is 2, with a minimum of 1 and a 
maximum of 3.