ERROR CODES
SM 13 B779
Fax Option
B779
Code Meaning Suggested Cause/Action
0-76
The calling terminal fell back
to T.30 mode, because it
could not detect a JM in
response to a CM
(CM timeout).
• The called terminal could not detect a CM due to
noise, etc.
• Check the line connection and condition.
• Try making a call to another V.8/V.34 fax.
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.
0-84
The line was disconnected
due to abnormal signaling in
V.34 phase 4 – control
channel start-up.
• The signal did not stop within 10 s.
• Turn off the machine, then turn it back on.
• If the same error is frequent, replace the FCU.
0-85
The line was disconnected
due to abnormal signaling in
V.34 control channel restart.
• The signal did not stop within 10 s.
• Turn off the machine, then turn it back on.
• If the same error is frequent, replace the FCU.
0-86
The line was disconnected
because the other terminal
requested a data rate using
MPh that was not available
in the currently selected
symbol rate.
• The other terminal was incompatible.
• Ask the other party to contact the manufacturer.
0-87
The control channel started
after an unsuccessful
primary channel.
• The receiving terminal restarted the control
channel because data reception in the primary
channel was not successful.
• This does not result in an error communication.
0-88
The line was disconnected
because PPR was
transmitted/received 9
(default) times within the
same ECM frame.
• Try using a lower data rate at the start.
• Try adjusting the cable equalizer setting.
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