Sidetone Modification +Sidet; Initialize Voice Parameters +Vip - Multitech MMCModem GPRS (MTMMC-G) Reference Manual

SideTone Modification +SIDET

Description:
This command sets the level of audio feedback in the speaker (microphone feedback in the speaker).
Values: <val1>
<val2> (default value 0 will be used if this parameter is not given)
Syntax:
AT+SIDET=<val1>,<val2>
Command
AT+SIDET=1,0
AT+SIDET?
Note: Current value
AT+SIDET=?

Initialize Voice Parameters +VIP

Description:
This command allows factory settings for voice parameters to be restored from EEPROM.
These voice parameters include:
Values: <n>
Syntax:
AT+VIP=<n>
Command
AT+VIP?
AT+VIP=2
Note: Syntax error
AT+VIP=1
Note: Restore the factory settings from EEPROM
AT+VIP=1
Note: Restore the factory settings from EEPROM
with the current Echo cancellation algorithm
(different of the default algorithm).
AT+VIP=?
Note: List of supported <n>s
Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I)
0
SideTone is disabled
1
SideTone is enabled
0
0 db
1
- 6 db
2
- 12 db
3
- 18 db
Possible responses
OK
Note: Command valid
+SIDET: 1,0
OK
Note: Command valid
+SIDET: (0-1),(0-3)
OK
•
Gain control (+VGR & +VGT commands)
•
Gain controller (+WSVG command)
•
Microphone mute control (+CMUT command)
•
Speaker & Microphone selection (+SPEAKER command)
•
Echo cancellation (+ECHO command)
•
Side tone modification (+SIDET command)
1
Restore all voice parameters.
Other values are not supported.
Chapter 5 – Call Control Commands
Possible responses
+VIP: 1
OK
+CME ERROR: 3
OK
Note: The command has been executed
CME ERROR: 519
Note: Reset the product to accept the new
algorithm.
+VIP: (1)
OK
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