Telephone operation
22
Options while on calls
Volume control
While on a call, press VOLUME-/TCID to decrease or press VOLUME+/
DIRS to increase the listening volume.
Call waiting
If you subscribe to call waiting service with your local telephone service 
provider, you hear a beep if someone calls while you are already on a call. 
Press        
PHONE/FLASH to put your current call on hold and take the new 
call. Press       
PHONE/FLASH at any time to switch back and forth between 
calls.
Mute
Use the mute function to turn off the microphone. You can hear the caller, 
but the caller does not hear you. 
To mute a call:
• Press MUTE/
DELETE. When mute is on, the handset screen 
shows MUTED for a few seconds and the MUTE icon 
appears until you turn off mute. 
To un-mute a call:
• Press MUTE/
DELETE again. When mute is off, 
MICROPHONE ON appears temporarily on the handset 
screen.
NOTES:
1. Handset and speakerphone volume settings are independent.
2. When the volume reaches the minimum or maximum setting, 
you hear two beeps.
VOLUME/TCID or 
VOLUME/DIRS
 
DELETE/MUTE 
QIPOF!!!1;11;41
NVUFE
MUTE