Reference
Number
Feature
Feature Description
6
Line key LED indicators
Indicates a line or busy lamp field contact's status. The
following lists the LED Indicator behaviors shown on
the expansion modules:
•
Solid Green—Indicates an active call in progress.
•
Fast-Flashing Green—Indicates an incoming call.
•
Flashing Green—Indicates the remote party placed
the call on hold.
•
Solid Red—Indicates the phone of a monitored
busy lamp field contact is placing a call or is in a
call.
•
Flashing Red—Indicates a held call.
•
Flashing Green and Red—Indicates the phone of a
monitored busy lamp field contact is on an active
call or is receiving an incoming call.
7
Color Display
Displays line numbers, monitored contacts, contacts'
presence, and favorites.
Connect a VVX EM50 Expansion Module
Expansion modules are powered and signaled by the connected VVX phone and require minimal setup.
After you connect an expansion module to a phone, the module is automatically configured to work with
the phone.
Procedure
1.
Power off the VVX 450 business IP phone.
2.
Insert the USB plug on the VVX EM50 expansion module into the side USB port on the VVX 450.
3.
Lay the connected phone and expansion module face-down on the table.
4.
Insert the supplied screw into the bracket screw hole and, using a screwdriver, secure the
expansion module to the phone, as shown.
The LED lights on the module's line keys flash red and green as the module starts up.
Polycom VVX EM50 Expansion Modules
71
