Aastra 9480i CT User Manual page 157

When in an idle state, pressing the Menu key  of the handset presents the following list of options. Once in the menu list
the user can scroll up Ï and down  using the scrolling keys to see each option.
Item # Menu list
1 Intercom
2 Language
3 Ring tone
4 Custom name
5 Timer On
6 Vibrate Off
7 Handset pairing
8 Key lock Off
9 Backlight On
10 Silent Alert Off
Note:
The display returns to idle if no action/activity is initiated within 20 seconds.
41-001381-00 REV01 – 06.2013
Cordless Handset
149