Specifications

AT Command Set Reference
Ver. 1.00
GSM1308AT001 Page 224 Ver. 1.00 – 10/29/2008
4.3.8. $MICAEC Echo Cancellation
(continued)
Parameter Values
< control > 0 => stop.
1 => start.
2 => update
< mode > 3 => divergence control enable
7 => divergence control disable
< cont filter > 0 => disable
1 => enable
< uplink scaling > 0=> disable.
3=> enable.
< downlink scaling > 0 => enable
3 => disable
< max level > 0 => -24 dB …
24 => 0 dB
< smoothing coef > 3275 => ???? …
32767 => ????
Reference N/A
Standard Scope Optional
Enfora Implementation Scope Full
Notes
Examples
AT$MICAEC=1,3,1,3,0,12,3275 Start AEC with divergence control enabled,
continuous filtering, uplink scaling, no
downlink scaling, max level = -12 dB,
smoothing coef = 3275.