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2 Select Settings > Basic > Backlight Timeout.
3 From the Backlight Timeout screen, scroll to the timeout you want, then
press the Select soft key.
The default timeout is 40 seconds.
Changing the Ring Type
You can select different ring types to distinguish different lines or phones from
each other.
To change the incoming ring type:
1 Press .
2 Select Settings > Basic > Ring Type.
3 If multiple lines are configured on your phone, first select the line to
change from the list using the arrow keys.
4 Scroll to select the desired ring type.
To hear the selected ring type, press the Play soft key.
5 Press the Select soft key to change to the selected ring type.
Note
If you configure your SoundPoint IP 450 phone with a silent ring, press the flashing
Line key or the Answer soft key to answer the call. If your handset is off hook, the
call is routed to the handset. If your handset is on hook, the call is routed to the
speaker.