Help! how to make app to choose sim card (sim 1 or sim 2 ) before make a call

Hello everyone ,
i’am memet , from belitung island , indonesia …
i try to make a app to make a call , but i need to my app can auto choose which simcard will used to make a call , it is posible ?
i have search this solution from many forum , but still dont have a solution for this …

Thanks before ,

Hiii. The system you want is not possible till one make changes in dial setting of their Android mobile…

thx mr. [Alapjeet_Singh_RK] for your reply …
it’s imposible to we use activity starter to change default sim for call ?
i want to make app to auto choose sim ,
example , if the number is A ,then call with sim 1 , else call with sim 2 …
thanks again…

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