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144 APPENDIX A: TELEPHONE INSTALLATION AND MAINTENANCE
Tab le 14 Possible Problems
Possible Problem Suggested Solutions
My telephone has no dial
tone. The display panel is
blank.
■ 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 each Ethernet cable is 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.
My telephone has “locked
up.”
■ 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 still appears to
be locked, disconnect the electrical power for your
telephone, and then plug it back in.
Callers cannot leave
me
ssages on my voice mail.
■ 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 the NBX NetSet utility and go to
NBX Voice Mail Settings > Personal Greeting
and clear the Greeting Only Mailbox checkbox.
When I park a call, the
display panel shows “Park
xtn in use,” and the call
returns to my telephone.
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 7.
When I dial 9 or 8 to access
an outside line, the display
panel shows “All Ports
Busy.”
No outside lines are available. Try again in a few
minutes.
After I call another user in
my organization, I hear a
tone but no ringing.
The other user may have the Hands Free Active on
Intercom feature enabled. Begin speaking after you
hear the tone.
On my 3Com Business
Telephone or 3Com
Manager’s Telephone, all
incoming internal calls
come over my speaker
phone.
You have the Hands Free Active on Intercom feature
enabled.