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Telephone operation
Options while on calls
Volume control
While on a call, press 
 
DIR/VOLUME to increase or  
 
CID/VOLUME to decrease the listening volume.  
When the volume reaches the minimum or maximum 
setting, you hear two beeps.
NOTE: The handset volume setting and speakerphone volume 
setting are independent.
Mute
Use the mute function to turn o the microphone while on a call. You can 
hear the caller, but the caller cannot hear you.
To turn mute on:
 X Press MUTE. When mute is on, the handset screen shows 
Muted until the mute function is turned o.
To turn mute o:
 X Press MUTE and then resume speaking. When mute is 
o, Microphone on appears temporarily on the handset 
screen.
-OR-
Mute is automatically turned o when you end the call.
Flash/call waiting
If you subscribe to call waiting service provided by your telephone service 
provider, and someone calls while you are already on a call, you hear  
two beeps.
 X Press 
 
PHONE/FLASH to put your current call on 
hold and take the new call.
 X Press 
 
PHONE/FLASH anytime to switch back and 
forth between calls.
NOTE: For more information on caller ID with call waiting, refer to About caller ID on  
page 41.
       Muted
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ECO
10:30
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       11/20