Edit SIM card Information

[Brown]

Hi All,

I am looking for a way to edit information (some sort of configuration
info) on SIM card such that I can change destination server address.
Basically I am looking for a way to program SIM card to set up
different destination, a cell phone, a web server, an IP address..etc.
Is it possible to do it using Laptop - change APN string...similar
parameters?

Thanks in advance !

-Brown.

[John Henderson]

Post by Brown
I am looking for a way to edit information (some sort of configuration
info) on SIM card such that I can change destination server address.
Basically I am looking for a way to program SIM card to set up
different destination, a cell phone, a web server, an IP address..etc.
Is it possible to do it using Laptop - change APN string...similar
parameters?

There's the "AT+CGDCONT" packet-domain command, implemented
specifically to change/define the PDP context. In its simplest
form, it's used like this:

AT+CGDCONT=1,"IP","telstra.internet"

Such changes persist until overwritten. It's not uncommon to use
such a command as part of a modem initialization string.

Many SIM parameters can be independently read and written using
the "AT+CRSM" (restricted SIM access) command.

AT commands are documented in 3GPP 27.007. The SIM elementary
file structure is documented in GSM 11.11 and 3GPP 31.102
(including parameter definitions for "AT+CRSM").

Using "AT+CRSM" is not for the feint-harted.

John

[Brown]

Post by John Henderson

Post by Brown
I am looking for a way to edit information (some sort of configuration
info) on SIM card such that I can change destination server address.
Basically I am looking for a way to program SIM card to set up
different destination, a cell phone, a web server, an IP address..etc.
Is it possible to do it using Laptop - change APN string...similar
parameters?

There's the "AT+CGDCONT" packet-domain command, implemented
specifically to change/define the PDP context. In its simplest
        AT+CGDCONT=1,"IP","telstra.internet"
Such changes persist until overwritten.  It's not uncommon to use
such a command as part of a modem initialization string.
Many SIM parameters can be independently read and written using
the "AT+CRSM" (restricted SIM access) command.
AT commands are documented in 3GPP 27.007.  The SIM elementary
file structure is documented in GSM 11.11 and 3GPP 31.102
(including parameter definitions for "AT+CRSM").
Using "AT+CRSM" is not for the feint-harted.
John

Thanks John, Appreciate your respons.
-Brown.

[kenshin312]

Is the way is useful


--
kenshin312

[Brown]

Post by John Henderson

Post by Brown
I am looking for a way to edit information (some sort of configuration
info) on SIM card such that I can change destination server address.
Basically I am looking for a way to program SIM card to set up
different destination, a cell phone, a web server, an IP address..etc.
Is it possible to do it using Laptop - change APN string...similar
parameters?

There's the "AT+CGDCONT" packet-domain command, implemented
specifically to change/define the PDP context. In its simplest
        AT+CGDCONT=1,"IP","telstra.internet"
Such changes persist until overwritten.  It's not uncommon to use
such a command as part of a modem initialization string.
Many SIM parameters can be independently read and written using
the "AT+CRSM" (restricted SIM access) command.
AT commands are documented in 3GPP 27.007.  The SIM elementary
file structure is documented in GSM 11.11 and 3GPP 31.102
(including parameter definitions for "AT+CRSM").
Using "AT+CRSM" is not for the feint-harted.
John

Thanks John, Appreciate your respons.
-Brown.