User guide

Developers guidelines | AT commands
19 June 2010
2. Entering an execution command
Execution commands are very similar to set commands. They usually do not require
any parameters and are used to obtain information about the mobile phone or built-in
modem or to execute an event.
For example, to find out information about the mobile phone battery, enter the +CBC
command:
AT+CBC
The built-in modem responds:
CBC: 0,60
indicating that the mobile phone battery is connected (0) and that the remaining charge
is 60%.
To answer an incoming call, you execute the A command:
ATA
3. Using read command to view command settings
To check the current settings of a command, use the ? option.
For example, to check the current settings of the +CBST command, enter:
AT+CBST?
If CBST has been set according to the previous example, the settings are displayed as
+CBST: 0,0,1
4. Using test command to request command help
To test the availability of a command and the range of parameters, use the =? option
with the command. For example, to check the parameters available to the command
line in the example above, enter:
AT+CBST=?
The line:
+CBST: (0,4,6,7,68,70,71),(0),(1)
is displayed indicating the range of valid entries that can be set for the parameters
<data rate>,
<bearer service> and <connection element>.