Long-time lurker, first time post. Hi! I'm running a world premiere play called "Holding On, Letting Go," and I have a sequence where a phone has to be on vibrate and go off during the scene- twice. I've searched the forums and haven't found any solutions. My question is- how to make this happen? My house is only 67 seats, so I'd like this to be practical. I have an extra iPhone that I can use as a prop, but I need to know how to send it a signal to vibrate. My actor has her own iPhone, but for a million reasons I don't want her to use her personal phone, not to mention how bad it'd be if her phone goes off at the incorrect time. Any ideas? Thanks!