Appendix 2: Trou
Problem
bleshooting Guide
Troubleshooting
I cannot turn on the power.
Check if the power cable is correctly connected.
LCD screen is not turned on.
I cannot hear any call
connection signal from
handset.
whether the handset volume is set to be
Check if the handset is connected to the right port of the
videophone. Check
too low.
Check if the Internet line is connected.
Press
<MENU>
to enter main menu
→［
Network
］→［
Network
status
］
, Check if the handset is connected to Internet.
If it is connected to ITSP(Internet Telephony Service Provider)
check if the registration lamp(Green LED) turns on check if the
server and account information are correct.
If it is connected to ITSP the called party may not be registered
with the same network.
If you are using speed dialing, check if it is correct in
［
PhoneBook
］
.
, it may not be connected.
I cannot make an IP call.
If a called party uses IP videophone installed in a private
network or a firewall system
Someone calls me but I
cannot receive the call.
IP videophone installed in a private
If a called party uses
network or a firewall system, you may not receive a call.
When I receive a call, the
e volume is set to be too low.
screen is turned on, but any
ring sound cannot be heard
Check if th
If the videophone is installed in private network or on firewall,
you may not be received the other party’s screen.
The call is connected, but the
other party’s screen is dark
and the sound is very bad
P
Check if a camera is connected to the other party’s I
videophone.
Check if the other party’s videophone is installed in private
network or firewall system
Volume up the handset
The call is connected, I can
see the screen, but cannot
dio/video encode
hear any voice.
Check if both sides have the same au
protocol.
Check if the other party’s videophone is installed in a private
network or firewall system.
Check if the audio/video input path is correctly configured in the
setup menu during a call.
The call is connected and I
can see the screen, and hear
the voice, but the other party
cannot see and hear me.
Check if the other party’s audio/video device works properly.
Check if the videophone is connected to Internet properly.
The other party’s screen stops
sconnected
suddenly and the voice is not
heard any more.
Check if the other party’s videophone has gotten di
from Internet before the call is completed.
Check the Internet environment is corrected configured.
Check if the DNS server address is correct.
The browser is not connected
to the website I want.
e
in service.
Ch ck if the website is
When the videophone is When external video o
connec
image
ted to TV set, the
utput port is connected to TV, a certain
image is not displayed on LCD screen of the IP videophone.
is displayed on both
screen are different.
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