3Com 3101 Manual page 52

52 C A: T
HAPTER ELEPHONE
I M
NSTALLATION AND AINTENANCE
Table 4 Possible Problems
Possible Problem
My telephone has no dial
tone and the display panel
is blank.
I hear a high pitch tone but
not a dial tone.
My telephone has "locked
up."
Callers cannot leave
messages on my voice mail.
When I dial 9 or 8 to access
an outside line, the display
panel shows "All Ports
Busy."
My telephone keeps
ringing after I pick up the
handset.
The display panel shows
"Wait for NCP."
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.
You are not logged in to your telephone.
■
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.
No outside lines are available. Try again in a few
minutes.
Your telephone may have lost connection to the
■
system immediately after a call came in. Remove the
Ethernet cord from the jack, then re-insert it into
the wall jack.
Wait a few seconds. If the telephone continues to
■
ring, disconnect the electrical power for your
telephone, and then plug it back in.
Your telephone may be disconnected from the system.
Hang up your telephone and wait a few seconds. Then
pick up the handset. If the message still appears on
your telephone display panel, contact your
administrator.