SS-16 VoIP-2-GSM USER MANUAL
DOC. NO: SS-16-14 (REV. 02)
Page 39 of 84
6.4.3
AT Command
Allows you to send AT commands directly to the GSM modules and see the respective
results:
First select the GSM module to be queried, choose mobile Interface 1 or 2.
Then type in the field “Command” the AT command that you want to issue to the
module, such as “AT^MONI” which displays the type of mobile module, in the above
example, or “AT+cpin?”, and press the button “Execute” to execute the command.
The command and the result (the response from the module to the query) will be
displayed in the upper field, named “Response”, as you can see in the examples
below for “AT+cops?”,:
The Response field shows:
-
which mobile interface has been queried, by displaying a number above the
command and the answer to the command, respectively 0 (for mobile 1) or 1 (for
mobile 2)
-
the command issued
-
the response
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the result, either “OK” or “ERROR”.
AT Commands
AT commands are instructions used to control a modem. Many of them, initially used
to control wired dial-up modems, are also supported by 2G/3Gmodems and mobile
phones. Besides this common (basic) AT command set, GSM/GPRS modems and
mobile terminals support an extended AT command set, which is specific to the GSM
technology. The SS-16 internally use extended commands for voice, data and SMS,
but with this configuration page, you can send commands directly to the wireless
modems of the equipment.
Some examples of such commands are shown below:
Get basic information about the mobile modem. Such information may be the
name of manufacturer (AT+CGMI), model number (AT+CGMM), IMEI number