User's Manual
4 - 1
4
Using the SoundPoint IP Backlit 
Expansion Module
This chapter provides basic installation and operating instructions and 
information for obtaining the best performance with the Polycom® 
SoundPoint IP Backlit Expansion Module. 
Each SoundPoint IP Backlit Expansion Module enhances the user interface of 
the SoundPoint IP 650 phone with a high-resolution graphic display and 14 
Line Keys that can be automatically configured as a line, call appearance, 
speed dial, or busy lamp field. Up to three SoundPoint IP Backlit Expansion 
Modules can be connected to the Polycom® SoundPoint IP 650 phone to 
provide a productivity-enhancing solution for users who manage and monitor 
multiple simultaneous telephone calls on a daily basis.
This topics include:
• Connecting the SoundPoint IP Backlit Expansion Module
• Features of the SoundPoint IP Backlit Expansion Module
• Adjusting the Display Contrast
• Adjusting the Backlight Intensity
• Placing Calls
• Answering Calls
• Assigning Speed Dial Keys
• Using the Busy Lamp Field
To customize your phone, refer to Customizing Your Phone on page 5-1. To 
read about the phone’s basic features, refer to Using the Basic Features of Your 
Phone on page 2-1. To read about the phone’s advanced features, refer to 
Using the Advanced Features of Your Phone on page 3-1.
If you require additional information or assistance with the Backlit Expansion 
Module, contact your system administrator.










