proctorU

i just finished taking the ompt a exam with proctorU, but i have a doubt, my phone, which was visible on the other side of the room (i very clearly showed the examiner me putting it there and he was fine with it) rang a couple of time as i stupidly forgot to put it in silent mode, could that be an issue? and does proctorU alert you if it senses "suspicious activity"? thanks in advance