Multi-Tech Systems GPRS (MTMMC-G) Benutzerhandbuch
Chapter 5 – Call Control Commands
Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I)
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SideTone Modification +SIDET
Description:
This command sets the level of audio feedback in the speaker (microphone feedback in the speaker).
Values: <val1>
0
0
SideTone is disabled
1
SideTone is enabled
<val2>
(default value 0 will be used if this parameter is not given)
0
0 db
1
- 6 db
2
- 12 db
3
- 18 db
Syntax:
AT+SIDET=<val1>,<val2>
Command
Possible responses
AT+SIDET=1,0 OK
Note: Command valid
AT+SIDET?
Note: Current value
Note: Current value
+SIDET: 1,0
OK
Note: Command valid
OK
Note: Command valid
AT+SIDET=? +SIDET:
(0-1),(0-3)
OK
Initialize Voice Parameters +VIP
Description:
This command allows factory settings for voice parameters to be restored from EEPROM.
These voice parameters include:
•
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)
Values:
<n>
1
Restore all voice parameters.
Other values are not supported.
Syntax:
AT+VIP=<n>
Command
Possible responses
AT+VIP? +VIP:
1
OK
AT+VIP=2
Note: Syntax error
Note: Syntax error
+CME ERROR: 3
AT+VIP=1
Note: Restore the factory settings from EEPROM
Note: Restore the factory settings from EEPROM
OK
Note: The command has been executed
Note: The command has been executed
AT+VIP=1
Note: Restore the factory settings from EEPROM
with the current Echo cancellation algorithm
(different of the default algorithm).
Note: Restore the factory settings from EEPROM
with the current Echo cancellation algorithm
(different of the default algorithm).
CME ERROR: 519
Note: Reset the product to accept the new
algorithm.
Note: Reset the product to accept the new
algorithm.
AT+VIP=?
Note: List of supported <n>s
Note: List of supported <n>s
+VIP: (1)
OK
OK