There's a dude that has been harassing a colleague of mine through phonecalls. Dude works for a bank(ayylmao) and thinks he's some kind of rockstar for some weird reason. Would like to record the dude in order to play it safe cause the dude somehow found the phone of family members as well. What would be a good solution for that? Seems like the Galaxy A13 doesn't have a screen recorder and the audio recording stops whenever a call is on the line.