Sony PCS-G70 Operating Instructions Manual page 209

Symptom Cause
No connection. Some of the system settings are not
correct.
The IP address and network mask
are not set correctly (when using
LAN).
The LAN or ISDN cable is
disconnected.
The LAN or ISDN cable is
connected to the incorrect
connector.
The LAN or ISDN cable is down.
The cable exclusively designed for
the ISDN connection is used for
LAN connection (when using
LAN).
Incorrect type of cable (cross or
straight cable) is used for the LAN
or ISDN connection.
The DSU is turned off.
If you disconnect the
communication with an abnormal
procedure, e.g., unplugging an
ISDN cable or turning off the
system during communication, you
may not connect to the ISDN line
for a while (when using ISDN).
If you repeat plugging/unplugging
or turning on/off, you may not
connect to the network for a while
(when using LAN).
LAN connection timeout (when
using LAN).
Packet for videoconferencing is not
acceptable under the current LAN
environment (when using LAN).
The remote terminal is not turned
on.
It takes a long time for the remote
party to be able to answer from the
standby mode.
The remote party is in
communication with another party.
Solution
Set the system settings correctly
referring to "Registering Local
Information" (page 43).
Ask the system administrator to set
them correctly (page 59).
Connect correctly (pages 23, 24).
Connect correctly (pages 23, 24).
Replace the cable with a new one.
Use the cable for LAN connection.
Use the correct type of cable.
Turn on the DSU.
Turn off the power of the system and
wait for a few minutes before turning
it on again.
Turn off the power of the system and
wait for a few minutes before turning
it on again.
Try again later.
Consult with the system administrator
so that the packet for
videoconferencing becomes
acceptable under your LAN
environment.
Ask the remote party to turn on the
terminal.
Ask the remote party to cancel the
standby mode.
Call the remote party after they end
the communication with another
party.
Troubleshooting
209