Data Sheet

SIM900 AT Commands Set
SIM900R01_ATC_V1.00 147 15.01.2010
Test Command
AT+CIURC=?
Response
+CIURC: (0,1)
OK
Response
+CIURC:<mode>
OK
Read Command
AT+CIURC?
Parameter
see Write Command
Response
OK
ERROR
Write Command
AT+CIURC=
[<mode>]
Parameter
<mode> 0 disable URC presentation.
1 enable URC presentation
Reference Note
z When module power on and initialization procedure is over .
z URC “Call Ready” will be presented if <mode> is 1.
6.2.37 AT+CPSPWD Change PS Super Password
AT+CPSPWD Change PS Super Password
Response
OK
ERROR
Write Command
AT+CPSPWD=
<oldpwd>,<newp
wd>
Parameters
<oldpwd> string type(string should be included in quotation marks).
Old password and length should be 8.
<newpwd> string type(string should be included in quotation marks).
New password and length should be 8.
Reference Note
z Default value of <oldpwd> is “12345678”.
z If module is locked to a specific SIM card through +CLCK and
password lost or SIM state is PH-SIM PUK, you can use the super
password to unlock it.
z It is not supported temporarily.