Telephone operation
37
Volume control
You can set the listening volume to one of 
six levels. While on a call, press  
VOL q CID to decrease or press  
VOL p DIR to increase the listening 
volume.
Notes:
f Handset and speakerphone volume settings are independent.
f When the volume reaches the minimum or maximum setting, you hear two beeps.
Call waiting
If you subscribe to call waiting service from your telephone service 
provider, and someone calls while you are already on a call, you 
hear two beeps.
f Press   on the handset to put your current call on 
hold and take the new call.
f Press   on your handset at any time to switch back 
and forth between calls.
Note: 
f If the Smart call blocker feature is on and in screening mode, and you receive a call waiting call: 
-  If you have already picked up a screened call, the telephone checks whether the call waiting 
call’s number can be found in the directory, block list or allow list. It also checks whether the 
caller name is in the star name list. After that, the telephone displays the caller ID information 
or Blocked call accordingly. You can press   or  /SPEAKER to take the new 
call, or press CALL BLOCK on the handset to block it.
-  If the telephone is screening a call, the call waiting call will be ignored and logged as missed call 
in the caller ID log. 
Options while on calls