
Chapter 6 – SIM Card Operational Commands
Multi-Tech Systems, Inc. CDMA Wireless AT Commands (PN S000294J)
38
Change Password +CPWD
Description:
This command is used by the application to change a password, PIN1or PIN2. The “SC” and “P2” facilities
are available only in builds, which include UIM support.
Values:
<fac>
“SC”
PIN1
“P2”
7.6.2
PIN2
<oldpwd>
Current PIN1 or PIN2 password
<newpwd>
Desired PIN1 or PIN2 password
Syntax:
Command syntax:
AT+CPWD= <fac>, <oldpwd>, <newpwd>
Command
Possible Responses
AT+CPWD=”SC”,1234,5555
Note: Change UIM PIN1
OK
Note: PIN1 now 5555
AT+CPWD=”SC”,1234,5555
Note: Change UIM PIN1
+CME ERROR: 16
Note: PIN incorrect
AT+CPWD?
Note: Get status
+CPWD:(“SC”,8),(“P2”,8)
OK
Note: PIN1 & PIN2 passwords are supported with 8 digit maximum
Card Identification +CCID
Description:
This command is used to display the SIM card ESN. The data is output in hexadecimal format. If there is no
ESN present on the SIM card, only the OK portion of the message will be output.
Syntax:
Command syntax:
AT+CCID
Command
Possible Responses
AT+CCID
Note: Get card ID
+CCID: C3729F82
Note: ESN is presented in hexadecimal format.
AT+CCID?
Note: Get current value
+CCID: C3729F82
Note: Same result as +CCID
AT+CCID=?
Note: Get possible value
OK
Note: No parameter but this command is valid.