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
Mute
Use the mute function to turn off the microphone while on a call. You can hear the caller, but the caller cannot hear you.
To turn mute on:
•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 turn mute off:
•Press mute/delete and then resume speaking. When mute is off, microphone on appears temporarily on the handset screen.
Mute is automatically canceled when you end the call.
Flash/call waiting
MUTED
10:30PM MUTE 11/20
If you subscribe to call waiting service provided by your telephone service provider, you hear a beep if someone calls you 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 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 33.
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