Specifications

SIM900 AT Commands Set
SIM900_ATC_V1.01 191 23.06.2010
758 CRSM missing command data
759 CRSM invalid characters in command data.
765 Invalid input value
766 Unsupported mode
767 Operation failed
768 Mux already running
769 Unable to get control
770 SIM network reject
771 Call setup in progress
772 SIM powered down
773 SIM file not present
10 AT Commands Sample
10.1 Profile Commands
Demonstration Syntax Expect Result
The AT Command
interpreter is actively
responded to input.
AT OK
Display the product
name and the product
release information.
ATI SIM900 R11.0
Display product
identification
information: the
manufacturer, the
product name and the
product revision
information.
AT+ GS V SIMCOM_Ltd
SIMCOM_SIM900
Revision:1137B01SIM900M32_ST
OK
Display current
configuration, a list of
the current active profile
parameters.
AT& V [A complete listing of the active profile]
OK
Reporting of mobile
equipment errors. The
default CME error
reporting setting is
disabled. Switching to
verbose mode displays a
string explaining the
error in more details.
AT+ CM EE= ?
AT+ CM EE?
AT+CSCS=?
+CMEE: (0-2)
OK
+CMEE: 1
OK