IP8540 User Guide
5
•
Light-emitting diode
(
LED
)
status lights
:
Indicates user presence information
(Green indicates “Available”, Amber indicates “Away”, Green & Amber indicates
“Inactive”, and Red indicates “Busy” or “Active Call”)
•
Scroll-wheel
:
Navigates up and down the contact list and other elements of the
user interface.
•
Volume up/down button
:
Increases and decreases the volume for the
ringer, handset, and loudspeaker.
•
Mute microphone
:
Disable or enable audio input
•
Speakerphone button
:
Activate or deactivate speakerphone
•
Headset button
:
Activate or deactivate headset audio
•
Finger reader
:
Allows you to log on to your IP8540 with the touch of your finger
•
Help
:
Displays context sensitive help
