I am building an android application where an user dialing an USSD code selecting any sim slot and then I read USSD message.
Here I know from which SIM this USSD message belong to SIM first or SIM second. As user only selects SIM slot from my application.
Issue: If user dial USSD code from out side of my application. Here I don't know user selection.
Is there any method from which I can get the information of SIM slot from which the user had dial USSD code.