PIONEERPOS G24-L +MAFEAT, Features Selection, Mafeat Parameters, Parameter Description Feature

Chapter 3: AT Commands Reference

+MAFEAT, Features Selection

This command controls the algorithm features: sidetone, echo cancel, noise suppression and automatic gain control. Upon power up, the sidetone is enabled, and echo canceling, noise suppression and automatic gain control are disabled.

Command
Type	Syntax	Response/Action	Remarks
Set	AT+MAFEAT=<feature>,	OK	The Set command enables/disables
	<state>	or:	feature combinations.
		+CME ERROR: <err>
Read	AT+MAFEAT?	+MAFEAT:	The Read command returns the
		<feature><state>,	features state (enabled/disabled).
		[<CR><LF>+MAFEA
		T: <feature><state>
		[...]]
		OK
		or:
		+CME ERROR: <err>
Test	AT+MAFEAT=?	+MAFEAT: (<list of	The Test command returns the list of
		supported <feature>s),	supported features' numbers and
		(<list of supported	supported states (enable/disable).
		<state>s)
		OK
		or:
		+CME ERROR: <err>

The following table shows the +MAFEAT parameters.

		Table 3-111: MAFEAT Parameters
<Parameter>		Description
<feature>	A number between 1 to 15 which is built from a combination of:
	1	- Side tone
	2	- Echo cancel
	4	- Noise suppress
	8	- AGC (Automatic gain control)
<state>	0 - Disable
	1	- Enable

Note: AGC - Automatic Gain Control is an electronic circuit that controls the gain of the received signal in order to ensure adequate performance over a range of input signal levels.

April 15, 2008 G24-L AT Commands Reference Manual 3-169