MODEM STATUS CODES IN V.34 PROTOCOL DUMP 14 June, 2002
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4.5 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.
NOTE: The machine sometimes does not print all the status codes.
In polling communication, the signals are exchanged in the opposite
direction after phase 2.
4.5.1 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)