PioneerPOS G24-LC 用户手册

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页码 444
GPRS
3-246
 G24-L AT Commands Reference Manual
April 15, 2008
Example
AT+CGACT=?
+CGACT: (0,1)
OK
AT+CGACT?
+CGACT: 1,0
+CGACT: 2,0
+CGACT: 3,0
OK
AT+CGACT=1
ERROR
//GPRS network not present.
Note:
In some GPRS networks, +CGACT is not supported. the ATD*99 # command can be 
used to establish a connection.
Activating a context can take up to 150 seconds.
Deactivating a context can take up to 40 seconds.
When aborting a +CGACT Set command, the context is closed. This can take up to 40 
seconds.
STK
The SIM Application Toolkit (STK) is a set of applications and related procedures, which may be 
used in conjunction with SIM or Smart Cards during a GSM session. The STK provides 
mechanisms that enable applications existing in the SIM to interact and operate with any ME 
(such as the G24-L) that support these mechanisms.
The following scheme shows the SIM Toolkit functionality commands and unsolicited results 
that are implemented. All these commands are non-basic commands.
Figure 3-13: SIM Toolkit
Customer
Application
G24-L
Activation
AT+MTKE
+MTKP
SIM sends pro-active command 
AT+MTKP
User response to the SIM