Chapter 3: AT Commands Reference
December 31, 2007 AT Commands Reference Manual 3-243
+MAFEAT, Features Selection
This command controls the algorithm features: sidetone, echo cancel and noise suppression.
Upon power up, the sidetone is enabled, and echo canceling and noise suppression are disabled.
The following table shows the +MAFEAT parameters.
Example
AT+MAFEAT=5,1//Enables sidetone and noise suppress
OK
AT+MAFEAT?
+MAFEAT: 1,1//Feature=1 (sidetone), state=1 (enabled)
+MAFEAT: 2,0//Feature=2 (echo cancel), state=0 (disabled)
+MAFEAT: 4,1//Feature=4 (noise suppress), state=1 (enabled)
OK
Command
Type Syntax Response/Action Remarks
Set
AT+MAFEAT=<feature>,
<state>
OK
or:
+CME ERROR: <err>
The Set command enables/disables
feature combinations.
Read
AT+MAFEAT? +MAFEAT:
<feature><state>,
[<CR><LF>+MAFEA
T: <feature><state>
[...]]
OK
or:
+CME ERROR: <err>
The Read command returns the
features state (enabled/disabled).
Test
AT+MAFEAT=? +MAFEAT: (<list of
supported <feature>s),
(<list of supported
<state>s)
OK
or:
+CME ERROR: <err>
The Test command returns the list of
supported features' numbers and
supported states (enable/disable).
Table 3-159: MAFEAT Parameters
<Parameter> Description
<feature> A number between 1 to 7 which is built from a combination of:
1 - Side tone
2 - Echo cancel
4 - Noise suppress
<state> 0 - Disable
1 - Enable
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