Reference 
Number
Feature Feature Description
5 LED Page 
Indicators
Indicates a page's status.
• Fast-Flashing Green Indicates an incoming call on a page not currently 
displayed. Press the page key with the fast-flashing green LED indicator to 
view the contact with an incoming call.
• Slow-Flashing Green Indicates a monitored busy lamp field contact on a 
page not currently displayed is receiving an incoming call.
• Solid Red Indicates the current page displayed.
6 Color Display Displays line numbers, Microsoft Skype for Business presence contacts, and 
favorites.
Connect VVX Expansion Modules
VVX Expansion Modules are powered and signaled by VVX phones and require minimal setup. After you 
connect an expansion module to a VVX phone, the module is automatically configured to work with the 
phone.
For more information on setting up VVX Expansion Modules, see the Quick Start Guide for Polycom_VVX 
Expansion Modules.
Procedure
1. Connect an auxiliary cable from the AUX port on the phone to the AUX 1 port on the expansion 
module.
The LED lights on the module's line keys flash red and green as the module starts up. The VVX 
Color Expansion Modules take approximately 20 seconds to power up.
Connect Additional Expansion Modules
After the first module is on, you can connect up to two additional modules to your VVX phone.
Procedure
1. Connect an auxiliary cable from the AUX 2 port on the first module connected to the phone to the 
AUX 1 port on the second module.
2. Connect an auxiliary cable from the AUX 2 port on the second module to the AUX 1 port on the 
third module.
The LED lights on the line keys light up for each connected module as the expansion modules 
start up.
Assigning Contacts and Favorites to VVX Expansion Modules
The default view on your phone screen, which is the Lines screen, displays line registrations, Skype for 
Business contacts, and favorites. Each function occupies a display space on the Lines screen. VVX 
phones support a maximum number of display spaces, which are listed in the following table. When you 
reach the maximum number of display spaces on your phone, the next function you add is assigned to 
the first available line key on your expansion module.
Phone Accessories and Computer Applications
Polycom, Inc. 132