MTD2000 AT Command Guide R12
Confidential
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The following query command is used to query the current setting of all the elements in
a multi index AT command. The query all setting is not accessible via SMS due to large
amount of data.
If the user is trying to query all settings via SMS, the device will send out an unsolicited
response to indicate settings retrieval not allowed.
Command
Response
AT$ABC?
OK
$ABC: 1,<Parameter 1>,…,<Parameter N>
…
$ABC: M,<Parameter 1>,…,<Parameter N>
4.4 Execution Command
The execution command is used to execute an AT command.
Command
Response
AT$ABC
OK
Other responses (if any)
4.5 Command Response
4.5.1
Normal Response
For any command sent to the device, it will respond with either “OK” or “ERROR”. If
there is no syntax error in the command and all the parameters are correct, the device
will respond with “OK”, followed by the result (if any) after command execution.
Otherwise, the device will respond with “ERROR” and will not execute the command.
The command response (e.g. standard report) will be terminated by carriage return and
line feed (<CR><LF>) if the channel is serial port or TCP channel (no carriage return
and line feed for SMS channel).
Syntax
Example
<CR><LF>OK<CR><LF>
Note: Successful response.
OK
<CR><LF>ERROR<CR><LF
Note: Failure response.
ERROR
<CR><LF><$Command>: <Parameter 1>,…,<Parameter n>
$SL: 1,”91234567”
