234
Troubleshooting
No picture.
The selected picture source is not
tuned on.
Turn on the selected video equipment.
Video input is not selected properly. Select the video input properly (page
142).
The selected picture source is not
correctly connected to the system.
Check the connections (page 172).
A voice meeting is held.
This is not a malfunction.
Movement of the camera is
prevented.
Turn off the system, then turn it on
again.
No connection.
Wrong number was dialed.
Check the entered number.
The setting of “Line I/F” is not
correct (when using direct dialing).
Set “Line I/F” to correct interface
referring to “Calling a Remote Party”
(page 108).
The registered items in the Phone
Book are not correct.
Register the party correctly referring
to “Registering a Remote Party –
Phone Book” (page 120).
Some of the system settings are not
correct.
Set the system settings correctly
referring to “Registering Local
Information” (page 60).
The IP address and network mask
are not set correctly (when using
LAN).
Ask the system administrator to set
them correctly (page 74).
The LAN cable is connected to the
2 connector.
Set “Use LAN2” to “On” in the Line
I/F setup menu (page 64).
Some of the functions are restricted
when connecting the LAN cable to
the
2 connector. SIP connection,
use of gatekeeper and SNMP, and
Web and Telnet accesses are not
available.
The LAN or ISDN cable is
disconnected.
Connect correctly (pages 32, 33).
The LAN or ISDN cable is
connected to the incorrect
connector.
Connect correctly (pages 32, 33).
The LAN or ISDN cable is down.
Replace the cable with a new one.
The cable exclusively designed for
the ISDN connection is used for
LAN connection (when using
LAN).
Use the cable for LAN connection.
Incorrect type of cable (cross or
straight cable) is used for the LAN
or ISDN connection.
Use the correct type of cable.
The DSU is turned off (when using
ISDN).
Turn on the DSU.
Symptom
Cause
Solution
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