Towards the end of the episode, during the flashback where Kaili is on the phone crying about her date walking out on her, the phone screen changes repeatedly from shot to shot. First it's on a home screen, then a random app, and finally with her notification shade pulled down and clearly displaying "Emergency Calls Only." Either she is out of service range or doesn't have a SIM installed, in either case, it would be impossible for her to be making a phone call.