Error Codes
SM 23 D356
D356
Fax Option
Type C7500
Code Meaning Suggested Cause/Action
0-77
The called terminal fell
back to T.30 mode,
because it could not
detect a CJ in response
to JM
(JM timeout).
The calling terminal could not detect a JM due
to noise, etc.
A network that has narrow bandwidth cannot
pass JM to the other end.
Check the line connection and condition.
Try receiving a call from another V.8/V.34 fax.
0-79
The called terminal
detected CI while waiting
for a V.21 signal.
Check for line noise or other line problems.
If this error occurs, the called terminal falls
back to T.30 mode.
0-80
The line was
disconnected due to a
timeout in V.34 phase 2 –
line probing.
0-81
The line was
disconnected due to a
timeout in V.34 phase 3 –
equalizer training.
0-82
The line was
disconnected due to a
timeout in the V.34 phase
4 – control channel
start-up.
0-83
The line was
disconnected due to a
timeout in the V.34
control channel restart
sequence.
The guard timer expired while starting these
phases. Serious noise, narrow bandwidth, or low
signal level can cause these errors.
If these errors happen at the transmitting
terminal:
Try making a call at a later time.
Try using V.17 or a slower modem using
dedicated tx parameters.
Try increasing the tx level.
Try adjusting the tx cable equalizer
setting.
If these errors happen at the receiving
terminal:
Try adjusting the rx cable equalizer
setting.
Try increasing the tx level.
Try using V.17 or a slower modem if the
same error is frequent when receiving
from multiple senders.