25
Telephone operation
Volume control
You can set the listening volume to one of six levels. While 
on a call, press q
CID/VOLUME to decrease or press  
pDIR/VOLUME to increase the listening volume.
 NOTES: 
Handset and speakerphone volume settings are independent.
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.
Press 
PHONE/FLASH on the handset 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.
 NOTE: Missed call waiting calls are not counted as missed calls.
Mute
Use the mute function to turn off the microphone. You can hear the caller, 
but the caller cannot hear you. 
To mute a call:
•  While on a call, press MUTE/DELETE. When mute is on, 
the handset shows Muted for a few seconds and MUTE 
icon displays until you turn off mute. 
To end mute a call:
•  Press MUTE/DELETE again. When mute is off, Microphone ON appears 
temporarily on the handset.
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Options while on calls