interrupt arduino sim800l recive sms

hello every body i have arduino uno and sim800l
i want interrupt arduino with sim800l recive sms but i dont know how do it, wheather i can use interrupt with recive sms or not please help me Which pin i shuld use

Sim800_Header_Board_434_4-.jpg

Could you clarify what you mean by 'interrupt'? I can guess but I have a habit of guessing wrong.

Receiving an SMS is NOT an instantaneous process, like pressing a switch. Generating an interrupt when an SMS arrives is possible, but it is extremely unlikely to be the correct solution.

What, exactly, is it that you wish to interrupt?

thank you for answer my question, i want the sim 800 interrupt the arduino after get full sms And Arduino will process the process according to the text of the message

Single part / multi part text? Although to be fair, I don't know why I'm asking as I can't think of a way to do it initially. What is the Arduino doing that is so important that it can't poll the serial connection to the SIM800 every so often?

single part text