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116
A
A: T
PPENDIX
ELEPHONE
Cleaning Your
Telephone
Troubleshooting
Problems
I
M
NSTALLATION AND
AINTENANCE
Always unplug your telephone from the power source and from the
network before you clean it. Use a soft cloth dampened with mild
detergent.
WARNING: Failure to unplug the telephone before you clean it could
result in electrical shock.
Table 16
lists possible problems that you may encounter and the most
likely solutions. Where possible, each solution refers to the section in this
guide where you can find detailed information.
Table 16 Possible Problems
Possible Problem
My telephone has no dial
tone and the display panel
is blank.
My telephone has "locked
up."
Callers cannot leave
messages on my voice mail.
When I park a call, the
display panel shows "Park
xtn in use," and the call
returns to my telephone.
Suggested Solutions
Verify that the power cord is fully inserted in the
■
correct connector on the underside of the
telephone. Use the strain relief tab to prevent the
cord from becoming unplugged.
Verify that the Ethernet cables are connected and
■
that each cable is in the proper connection.
Remove and add power to the telephone by
■
unplugging the power cord at the electric outlet
and plugging it back in.
If the telephone is powered through a powered
■
Ethernet cable, make sure that power is applied to
the cable at its source.
Your telephone has lost the connection to the
■
system. Remove the Ethernet cord from the jack,
and then re-insert it into the jack.
Wait a few seconds. If the telephone display panel
■
still appears to be locked, disconnect the electrical
power for your telephone, and then plug it back in.
Your mailbox may be full. Log in to your voice
■
mailbox and delete some messages.
Your telephone may be set up for Greeting Only
■
Mailbox. Log in to NBX NetSet > NBX
Messaging and clear the Greeting Only Mailbox
checkbox.
You have selected a Call Park extension that is already
in use. Try another Call Park extension. Your
administrator can add additional Call Park Extensions.
For details, see
"Call Park"
in
Chapter
9.
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