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HUAWEI MG323 GSM M2M Module
AT Command Interface Specification Commands for Security Control
Issue 02 (2010-11-23)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
43
5 Commands for Security Control
This chapter describes the AT commands that allow external applications to configure
different security-based policies of the module.
5.1 AT+CPIN - Command for PIN Management
The AT+CPIN command identifies networks.
5.1.1 Checking Whether a PIN Management Command Exists
Test
command
AT+CPIN=?
Function
Check whether a PIN management command exists.
Response
<CR><LF>OK<CR><LF>
5.1.2 Reading the Password Entry Request
Read
command
AT+CPIN?
Function
Reads the current authentication status of the SIM card.
Response
z
In case of successful execution:
<CR><LF>+CPIN: <code><CR><LF>
<CR><LF>OK<CR><LF>
z
In case of an error related to the MT: <CR><LF>+CME ERROR:
<err><CR><LF>
Parameter description
Code: string without quotation marks.
Table 5-1 describes PIN authentication
performed by the SIM card.