SIM Application toolkit commands

[Amol Lad]

>> The Twilio Super SIM will send a Proactive Command NAA Initialization and Full File Change Notification to the terminal on the IMSI change. Some modems, like the Quectel BG95 or EC25 will send a URC if
>> +QUSIM: 1
>> if it is a USIM and
>> +QUSIM: 0
>> if it's a regular SIM
>> no idea about other modems however.
>>

> You mean the +QUSIM URC is sent to the host whenever the Full File
> Change Notification is received by the terminal on the IMSI change?
> i.e. no need to STK supported by the host in this case, right?

>> I can arrange to get you a SIM for testing if needed as this is an area I'm interested in as well. I can also provide a SIMtrace2 pcap (or raw APDUs if preferred) capture of the communications between the terminal and the SIM if that would be helpful.
>>

> How do you instruct the SIM to switch IMSI?

One way is mentioned here:
https://www.twilio.com/docs/iot/supersim/super-sim-multi-imsi-applet#force-a-switch-to-the-next-imsi




--
Aleksander
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>> The Twilio Super SIM will send a Proactive Command NAA Initialization and Full File Change Notification to the terminal on the IMSI change. Some modems, like the Quectel BG95 or EC25 will send a URC if
>> +QUSIM: 1
>> if it is a USIM and
>> +QUSIM: 0
>> if it's a regular SIM
>> no idea about other modems however.
>>

> You mean the +QUSIM URC is sent to the host whenever the Full File
> Change Notification is received by the terminal on the IMSI change?
> i.e. no need to STK supported by the host in this case, right?

>> I can arrange to get you a SIM for testing if needed as this is an area I'm interested in as well. I can also provide a SIMtrace2 pcap (or raw APDUs if preferred) capture of the communications between the terminal and the SIM if that would be helpful.
>>

> How do you instruct the SIM to switch IMSI?

One way is mentioned here:
https://www.twilio.com/docs/iot/supersim/super-sim-multi-imsi-applet#force-a-switch-to-the-next-imsi




--
Aleksander