Echo Echo Cancellation; Sidet Side Tone Modification - Zte AD3812 Command Manual

Defined values <level>: integer type value with manufacturer specific range (smallest value
represents the lowest sound level)

5.12 +ECHO Echo Cancellation

Description This command is used to enable, disable or configure the Echo Cancellation
functions for
voice calls (in rooms, in cars, etc.). The +SPEAKER function automatically sets
echo
cancellation based upon handset or headset choice and this command allows
non-standard
operation.
Command +ECHO=<level>
+ ECHO?
+ ECHO =?
Defined values 0: Vocoder Echo Cancellation Off
1: Ear Seal Echo Cancellation
2: Head Set Echo Cancellation
3: AEC
4: Speaker Echo Cancellation for car kit operation
5: Default Echo Cancellation for current path settings

5.13 +SIDET Side Tone Modification

Description This command is used to set the level of audio feedback in the speaker
(microphone
feedback in the speaker).
Command AT+SIDET=1,0
+ SIDET?
+ SIDET=?
Defined values <val1>
0: Sidetone is disabled
1: Sidetone is enabled
<val2>
0: No side tone
1: Handset Sidetone levels
2: Headset Sidetone levels
3: Max Sidetone level
+CME ERROR: <err>
+ ECHO: <level>
+CME ERROR: <err>
+ ECHO: (list of supported <level>s)
+CME ERROR: <err>
+CME ERROR: <err>
+ SIDET: <level>
+CME ERROR: <err>
+ SIDET: (list of supported <level>s)
+CME ERROR: <err>
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WCDMA Module