November 29, 1999
MODEM STATUS CODES IN V.34 PROTOCOL DUMP
7-35
Trouble-
shooting
7.5 MODEM STATUS CODES IN V.34 PROTOCOL DUMP
The following sections explain the meaning of modem status codes which appear
on the G3 protocol dump list after V.34 communications.
The machine sometimes does not print all the status codes.
In polling communication, the signals are exchanged in the opposite
direction after phase 2.
7.5.1 CALLING SIDE
Phase 1 (V.8)
FIF
Description
0010
Idle
0110
Idle
0111
ANSam reception
0011
CM transmission
0112
JM reception
0012
CJ transmission
0013
Phase 1 end
Phase 2 (Line Probing)
FIF
Description
0020
Idle
0021
75 ms interval
0121
Waiting for INFO0a
0022
INFO0c transmission
0122
INFO0a reception
0123
A reception
0023
INFO0c retransmission due to missing INFO0a
0024
INFO0c retransmission due to the second INFO0a reception
0031
B transmission
0032
B bar transmission
0033
L1 transmission
0034
L2 transmission
0041
B transmission during INFOh reception.
0127
INFOh reception
0042
Phase 2 end
0043
Waiting for A due to recovery from phase 3 (control channel)