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User Guide Polycom CX400 Cordless Phone
3 - 2
Power and Startup
Symptom Problem Corrective Action
The handset appears to be dead
with no LEDs or display (the
cradle has power as indicated by
LEDs that are steady or
flashing).
The Polycom CX400 handset
has no power. The battery has
become discharged.
Do the following steps:
• Ensure that the handset is powered
on by holding the Power/End Call key
for at least 3 seconds.
• Place the handset in the cradle and
recharge the battery. The cradle's red
LED will illuminate indicating that the
handset battery is being charged.
The Handset Status LED is
blinking red or the Critical Battery
indicator shows in the handset
display.
The handset battery is critically
low and needs to be charged.
Place the handset in the cradle and
recharge the battery. The cradle's red
LED will illuminate indicating that the
handset battery is being charged.
None of the LEDs in cradle light
up and the handset battery is not
being recharged.
The cradle is not receiving
power.
Do one of the following steps:
• Verify that the USB port provides
power. Some USB ports may not be
powered. This may occur when using
an unpowered USB hub or a USB port
on a peripheral like a keyboard.
• Try plugging the connector into
another USB port where the power is
known to be working. Using one of the
computer’s own USB ports will
normally solve this issue.
The handset and cradle appear
to be fine, but there is no
interaction between the handset
and the Microsoft Office
Communicator 2007 client.
There may be problems with
your Microsoft Office
Communicator 2007 client
software or with the Microsoft
Office Communications Server
2007 software.
Contact your system administrator to
ensure your account is configured
properly and that your Microsoft Office
Communicator 2007 client software and
the Microsoft Office Communications
Server 2007 software are properly
installed and configured.