User's Manual
User Guide for the SoundPoint IP 650 Desktop Phone
4 - 4
Adjusting the Display Contrast
To adjust the display contrast on a SoundPoint IP Backlit Expansion Module, 
refer to Changing the Display Contrast on page 5-2.
Adjusting the Backlight Intensity
To adjust the backlight intensity on a SoundPoint IP Backlit Expansion 
Module, refer to Changing the Backlight Intensity on page 5-3.
Placing Calls
When you connect a SoundPoint IP Backlit Expansion Module to your phone, 
you can place a call using one of the Line Keys.
3 Line Indicators Individual multi-color LEDs display 
the dynamic call state and remote 
user status (busy lamp field [BLF] and 
presence). The mapping is:
Solid green—An active call is in 
progress.
Fast flashing green—There is an 
incoming (ringing) call.
Flashing green—Another party has 
put you on hold.
Flashing red—The call is on hold.
Solid red—The line is busy remotely 
(shared lines).
4 Graphic Display Shows information about lines or 
speed dials.
5 Infrared Lens Facilitates communications to the 
host phone and other Expansion 
Modules.
Item Description










