Hi! What's the best way to purposely create static and/or popping sounds on the line when I talk? I have an iPhone 6s. I'm looking for static or popping (or similar) that the person on the other end of the line would hear (and if necessary, I would hear it too). Is there an add-on hardware module or software that would do this? I'm looking for something that I can activate or de-activate at will, at any time. DON'T ASK! Long story. Lol.