PLANET VIP-351PT - Manual (Page 48)

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Troubleshooting
If your IP Phone is not working properly, before you send it back to your dealer or our company,
please check this troubleshooting checklist first. Your problem could be very easy and you can try
to solve it by yourself!
Scenario / Problem
Solution
Nothing is displayed on
LCD screen z Please check the status of A/C adapter, is it securely connected to
the electric outlet on the wall?
z Is the power cord of A/C adapter still connected to IP Phone?
z If you use Power-over-Ethernet, please check the status of your
POE hub / switch, and Ethernet cable.
z Check contrast setting, and try a darker setting.
z Press
‘SPEAKER’
button on the phone, or lift handset. If you can
hear dialing tone, please return this IP phone to your dealer.
z Contact your dealer if above solution don’t work.
I see malformed /
strange text displayed
on the LCD screen of IP
Phone z If you see strange text / graphic displayed on LCD screen, please
disconnect the power cord and Ethernet cable, and reconnect
after 10 seconds.
z If you just tried to upgrade firmware and this happens, contact
your dealer.
I can not hear dialtone z Please check the cable connection between IP phone and
handset.
z Replace the cable used to connect IP phone and handset with a
new one. (If you don’t have another cable, bring the old cable to a
telephone / computer store and show them, they can help).
z If you can’t hear dialtone fron handset, try to press ‘SPEAKER’
button on the phone, to see if you can hear the dialtone. Please
also check the connection cable between handset and the phone.
z When you’re adjusting volume, you won’t hear anything in
handset, and ‘SPERAKER’ button will not function, too. This is
not a malfunction, just wait for few seconds.
z Try a higher volume setting.
z Try solutions of the scenario titled ‘Nothing is displayed on LCD
screen’ in this troubleshooting checklist
z Contact your dealer if above solutions don’t work.
I can hear dialtone in
the handset, but I can
not place / accept
phone call z If you hear busy tone (do do do …) in handset, the party you’re
calling may be busy, not online, or the phone number you just
dialed is wrong, please try again later and make sure the phone
number you called is correct.
z If you see ‘Initializing SIP server…’ on LCD screen, please
check the network connection first. If you’re sure there’s no
problem about the network connection, please contact your
service provider to ask about service availability.
Firmware Update
The system software (firmware) used by this IP Phone is stored on a flash-ROM, and can be
updated when newer version of system software is available. Please go to
PLANET Website
to check for new version of firmware. If there’s newer firmware available, we’ll publish its
download information on the webpage. The information comprises following items:
a. TFTP/FTP server address
b. Image file name
c. username
d. password.