13
Telephone operation
Basic phone operation
Volume control
The volume key controls the level of the incoming 
voice as well as the ringer volume. 
Handset/speakerphone/headset volume 
•  While using the handset, press 
[ VOLUME] to 
adjust the listening volume (1-5).
•  While using the speakerphone, press [ VOLUME] 
to adjust the listening volume (1-8).
•  While using the headset, press [ VOLUME] to 
adjust the listening volume (1-5). 
While using the volume control, you will hear 
a triple-beep when you reach the minimum or 
maximum level.  
Your 1080 remembers the volume setting for each 
mode. 
Ringer volume
•  When the telephone is idle, press 
[  VOLUME] to 
sample and select the desired volume (1-4) for 
all ringers. When changing the volume, the new 
setting is saved.
•  While the phone is ringing, press 
[ VOLUME] to 
adjust the ringer volume (1-4). As you adjust the 
ringer, you hear the ring change.
 NOTE: You can turn the external ringer off sepa-
rately for each line (page 14).