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AT%E Auto EQM Retrain
The %E command allows an originating modem to automatically retrain its comunications
equalisers during V.22bis MNP connections, or change the speed at twhich it is connected to
another modem.
S Register 33 and S Register 45 contain EQM (Eye Quality Monitor) threshold values. When
the quality of the connection deteriorates to this value, the modem will attempt to retrain the
connection.
The %E2 command allows an originating modem to automaticallyr etrain to a lower speed if the
line quality deteriorates. This only works between two modems, both supporting the feature.
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In all V.32 and V.32bis connections, Auto Retrain is enabled.
Options
AT%E0 Auto EQM Retrain OFF
AT%E1 Auto EQM Retrain ON
AT%E2 ■ V34/V32 auto rate change
See Also
S Register 33 V.32/V.32bis EQM Threshold Value
S Register 45 V.22bis EQM Threshold Value
O Command Return to On-line State
%Q Command Line Signal Quality
Range
0-2
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K56flex V.90 thresholds are set by S registers S122 (down-shift) and S123 (up-shift).