Specifications

SIM900 AT Command Manual
SIM900_AT Command Manual_V1.03 97 12/24/2010
4 AT Commands According to GSM07.05
The GSM 07.05 commands are for performing SMS and CBS related operations. SIM900 supports
both Text and PDU modes.
4.1 Overview of AT Commands According to GSM07.05
Command Description
AT+CMGD
DELETE SMS MESSAGE
AT+ CM GF
SELECT SMS MESSAGE FORMAT
AT+ CM GL
LIST SMS MESSAGES FROM PREFERRED STORE
AT+ CM GR
READ SMS MESSAGE
AT+ CM GS
SEND SMS MESSAGE
AT+ CM GW
WRITE SMS MESSAGE TO MEMORY
AT+CMSS
SEND SMS MESSAGE FROM STORAGE
AT+ CN MI
NEW SMS MESSAGE INDICATIONS
AT+CPMS
PREFERRED SMS MESSAGE STORAGE
AT+CRES
RESTORE SMS SETTINGS
AT+CSAS SAVE SMS SETTINGS
AT+ CS CA SMS SERVICE CENTER ADDRESS
AT+CSCB SELECT CELL BROADCAST SMS MESSAGES
AT+CSDH SHOW SMS TEXT MODE PARAMETERS
AT+CSMP SET SMS TEXT MODE PARAMETERS
AT+CSMS SELECT MESSAGE SERVICE
4.2 Detailed Descriptions of AT Commands According to GSM07.05
4.2.1 AT+CMGD Delete SMS Message
AT+CMGD Delete SMS Message
Response
+CMGD: (list of supported <index>s),(list of supported <delflag>s)
OK
Test Command
AT+CMGD=?
Parameters
See Write Command
Write Command
AT+CMGD=<in
dex>[,<delflag>]
Response
TA deletes message from preferred message storage <mem1> location
<index>.
OK
ERROR